Number of results: 130,941

**science**

compute the average velocity in the following two cases: you walk 73.2m at a speed of 1.22m/s and then run 73.2m at a speed of 2.80m/s

*February 17, 2017 by thabisoc seekane *

**physics**

Compute your average velocity in the following two cases: (a) You walk 73.6 m at a speed of 1.79 m/s and then run 73.6 m at a speed of 4.31 m/s along a straight track. (b) You walk for 1.00 min at a speed of 1.79 m/s and then run for 1.30 min at 4.31 m/s along a straight track.

*September 9, 2012 by Corey*

**physics**

If you walk for 1.66min at a speed of 1.22m/s and then run for 1.66min at 3.05m/s along a straight track, what is the average velocity?

*August 22, 2012 by Brittany*

**physics**

compare your average speed in the following cases. a. you walk 73.2 m at a speed of 1.2 m/s and then run 73.2 m at a speed of 3.1 m/s along a straight track. b. you walk 1 min. at a speed of 1.2 m/s and then run for 1 min. at 3.1 m/s along a straight track.

*August 16, 2015 by Anonymous*

**physics**

you walk 95.0 m at a speed of 1.26 m/s and then run 95.0 m at a speed of 3.61 m/s. what is the average velocity?

*August 21, 2016 by karen*

**physics**

What is the average velocity in the following cases? You run 77.9 m West at 2.67 m/s then walk for 133 s at 8.78 m/s West.

*October 14, 2012 by Dasha*

**physics**

What is the average velocity in the following cases? You run 77.9 m West at 2.67 m/s then walk for 133 s at 8.78 m/s West.

*October 14, 2012 by Dasha*

**Physics**

starting from your house, run 2oom east at an average speed of 4m/s, then turn around and run 280m west at an average spped of 7m/s to a post. 1) calculate Average velocity from house to post 2)average speed

*July 26, 2012 by carak*

**physics**

When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 4.80 m/s at 50.5° below the horizontal. Calculate the speed of her shadow on the level ground. What i have done: x= rcos(theta) x=4.80m/s*cos(309.5) x=3.05m y=rsin(theta) y=4.80m/s*...

*September 11, 2014 by Gaby*

**PHYSICS**

Starting from a pillar, you run a distance 200 m east (the + x-direction) at an average speed of 5.0 m/s, and then run a distance 280 m west at an average speed of 4.0 m/s to a post. Q: Calculate your average velocity from pillar to post.

*August 31, 2010 by Ami*

**physics**

A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|) and find the average speed for this trip. Then ...

*September 1, 2011 by Jeff*

**physics**

A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|) and find the average speed for this trip. Then ...

*September 3, 2011 by Marc*

**Science Help Not sure**

Within the Gaetz Lake Sanctuary in Red Deer, Alberta, is a looped trail that is 4 km long. Suppose a person walked all the way around the looped trail in 1 h, ending where he or she started. Which statement best describes this person’s motion over this time interval? A.The ...

*July 4, 2015 by Emmanuel*

**physics**

a boy is running on a straight road.He run towards north in 2 minutes and 10 seconds and then turn back and runs 200m in one minute.Calculate his average speed and magnitude of average velocity during first 2 minutes and 10 seconds and his average speed and magnitude of ...

*June 22, 2010 by tarun*

**Physics**

Could someone please review my answers and tell me if I am on the right track? Thank you! A student drove to the university from her home and noted that the odometer reading of her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If the ...

*August 31, 2012 by Miaow*

**physics**

quick answer of a boy is running on a straight road.He run towards north in 2 minutes and 10 seconds and then turn back and runs 200m in one minute.Calculate his average speed and magnitude of average velocity during first 2 minutes and 10 seconds and his average speed and ...

*June 22, 2010 by tarun*

**Physics**

It takes you 13.5 minutes to run 8 full laps around a 400m track. Find your average speed and average velocity for the run, both in m/s.

*December 3, 2012 by Skylar*

**Physics**

Consider two cases in which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to the wall and does not bounce.In Case B, the ball bounces back with the same speed that it came with. A.)In which of the two cases is the change in ...

*July 7, 2014 by Anonymous*

**Physics**

Consider two cases in which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to the wall and does not bounce.In Case B, the ball bounces back with the same speed that it came with. a.) In which of the two cases is the change in ...

*July 7, 2014 by Anonymous*

**Physics**

Consider two cases in which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to the wall and does not bounce.In Case B, the ball bounces back with the same speed that it came with. a.) In which of the two cases is the change in ...

*July 7, 2014 by Anonymous-HELP! PLEASE!!*

**Math**

Running at the average speed of 400m/min, Drake dashed to the end of the course. He then walked back to his starting position at an average rate of 80m/min. How long was the course if it took him 6 minutes to make the dash and walk back?

*March 30, 2016 by Anonymous*

**Math**

Running at the average speed of 400m/min, Drake dashed to the end of the course. He then walked back to his starting position at an average rate of 80m/min. How long was the course if it took him 6 minutes to make the dash and walk back? Time = distance ÷ speed so if d is the...

*March 30, 2016 by PleaseCheckMyAnswer*

**Physics**

A boy is cycling at a constant speed along a straight road to his school. The postions of the boy after fixed time intervals are observed. a. What type of position-time graph can be expected for the motion of the bicycle? b. How can the average velocity of the bicycle be ...

*April 15, 2008 by Jon*

**physics**

In 1954, Roger Bannister became the first human to run a mile in less than 4 minutes. Suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min. 1. What is his average speed in mi/h? 2. What is his average speed in ft/s? 3. What is his average ...

*January 20, 2011 by andrea*

**physics**

in 1954 roger bannister became the first human to run a mile in less than 4 minutes. suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min. What is the average speed in mi/h What is his average speed in ft/s what is his average speed in m/s...

*September 16, 2013 by deb*

**PHYSICS**

AVERAGE VELOCITY AND DISPLACEMENT HEATHER AND MATT WALK EASTWARD WITH A SPEED OF 0.98M/S. IF IT TAKES THEM 34 MINS TO WALK TO THE STORE, HOW FAR HAVE THEY WALKED?

*September 5, 2007 by Susie*

**Physics**

starting from ypur house, run 2oom east at an average speed of 4m/s, then turn around and run 280m west at an average spped of 7m/s to a post. 1) calculate Average velocity from house to post

*July 24, 2012 by carak*

**Physics**

Mutiple choice: A car travelling at 10 m/s accelerates at 3 m/s^2. Its new velocity is A.) 12 m/s B.) 22m/s C.) 17 m/s D.) Can not be determined. Which of the following is not acceleration? A.) rate of change of speed in a particular direction B.) rate of change of motion in a...

*December 17, 2013 by Katie*

**physics**

A runner, beginning at rest, completed a 50 m run with a final speed of 6 m/s. Assuming constant acceleration. a) What was the average speed of the runner? b) What was the runner's time? c) What was the acceleration? a) half the final speed b) distance/(average speed) c) (...

*October 2, 2006 by maria*

**Physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 21.0 s. She then gets out of the cart and starts walking at an average speed of 1.60 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.10 m/s?

*October 2, 2009 by Kristina*

**physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 26.0 s. She then gets out of the cart and starts walking at an average speed of 1.20 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.30 m/s?

*January 15, 2010 by Mary*

**Physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 23.0 s. She then gets out of the cart and starts walking at an average speed of 1.30 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.00 m/s?

*October 1, 2010 by Sean*

**physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 29.0 s. She then gets out of the cart and starts walking at an average speed of 1.40 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.20 m/s?

*October 1, 2010 by joe*

**physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 28.0 s. She then gets out of the cart and starts walking at an average speed of 1.30 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.10 m/s?

*September 28, 2011 by Anonymous*

**physics**

A golfer rides in a golf cart at an average speed of 3.93 m/s for 43.3 s. She then gets out of the cart and starts walking at an average speed of 1.13 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 1.99 m/s?

*December 16, 2015 by chris*

**PHYSICS**

A golfer rides in a golf cart at an average speed of 3.93 m/s for 43.3 s. She then gets out of the cart and starts walking at an average speed of 1.13 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 1.99 m/s?

*December 16, 2015 by James*

**Physics**

A golfer rides in a golf cart at an average speed of 3.93 m/s for 43.3 s. She then gets out of the cart and starts walking at an average speed of 1.13 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 1.99 m/s? Can ...

*December 17, 2015 by Josh*

**Physics**

Velocity/instantaneous velocity question? In a demonstration a ball falls directly to the ground. Which of the following statements about this event is not correct? (Assume downward is the positive direction.) a)The average velocity during the first half of the fall is greater...

*October 7, 2012 by Lewis*

**Physics**

A motorcyclist who is moving along an x-axis has an acceleration given by a=(6.60-2.29t) for 0 >= t <= 6.0 s, where a is in m/s2 and t is in seconds. At t = 0, the velocity and position of the cyclist are 3.20 m/s and 7.30 m. For the time interval from 0 >= t <= 6....

*June 29, 2015 by Jessica*

**Physics**

A golfer rides in a golf cart at an average speed of 3.10 m/s for 21.0 s. She then gets out of the cart and starts walking at an average speed of 1.60 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 2.10 m/s? I need...

*October 2, 2009 by Kristina*

**DISPLACEMENT and VELOCITY**

A turtle moves 3.5m [E] in 136 s and then moves 1.7m [W] in 88 s. a) What is the average speed of the turtle? b) What is the average velocity of the turtle? average speed: D/T = 3.5m + 1.7m = 5.2m/ 224s = 0.024m/s average velocity:?????????? Have I calculated speed correctly?

*November 14, 2010 by Anonymous*

**Math(Algebra)**

Janine has started an exercise program. As part of her exercise program, she will walk along trails. Janine walks at an average speed of 1 mile in 15 minutes. What is Janine’s average speed in miles per hour? Show or explain how you got your answer. Janine plans to walk ...

*November 23, 2015 by Hadlee*

**college physics**

a golfer rides in a golf cart at an average speed of 3.10 meters/sec for 28.0 sec. she then gets out of the cart and starts walking at an average speed of 1.30 m/s. for how long in seconds must she walk if her average speed for the entire trip, riding and walking is 1.8m/s?

*October 5, 2008 by ksunhsine*

**PHYSICS**

a)speed is the magnitude of instantaneous velocity. Is the average speed equal to the magnitude of the average velocity? Justify b)under what condition is the average equal to instantaneous velocity? c)a car travels 40 mph for 2 hrs and 60 mph for 3hrs.what is the average speed?

*July 26, 2010 by josh*

**physics**

At the Indianapolis 500 time trials, each car makes four consecutive laps, with its overall or average speed determining that car’s place on race day. Each lap covers 2.5 (exact). During a practice run, cautiously and gradually taking his car faster and faster, a driver ...

*September 29, 2012 by sammy*

**Physics- HELP**

How to find average speed with a given initial speed, theta, and delta x? I know average speed= total distance/total time, but I am given an initial speed, an angle and delta x. Mark throws a ball to Daniel with an initial speed of 20 m/s at an angle of 45 degrees. If they are...

*December 1, 2010 by Amm*

**Physics (Help Plz)**

Ilya and Anya each can run at a speed of 8.00 mph and walk at a speed of 3.50 mph . They set off together on a route of length 5.00 miles . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half. 1) Find Anya's ...

*September 9, 2016 by Ashley*

**science**

kinsey leaves her house to exercise and run straight down a long street for 5.00 meters at a constant rate of 3m/s then turns and run back toward her house for 2 meters what is her average speed in m/s what is her displacement what is her average velocity in m/s

*November 1, 2016 by chris*

**Astronomy**

You walk for 15 mins at 3.8m/s and then decide to run for 12 minutes at 2.5m/s. What is your average speed? My work: 15m+12m=27mins. 3.8m+ 2.5m=6.3m/s. 27+6.3= 33.3 (move decmil) to 3.33m/s

*September 2, 2015 by Frustrated!*

**physics**

a runner run halfway around a circular track whose radius is 60 meters in 45 secs what is the average velocity? what is the average speed?

*October 16, 2011 by Dan*

**PHYSICS answer check**

A 25 gram arrow fired from a bow has a speed of 80m/s. The energy in the arrow came from work done by the bow that acted over a 1m "draw" distance. What average force acted on the arrow over this distance mass=0.025kg speed=80m/s avg force 2N

*April 25, 2015 by MJW*

**Physical science check my answers**

5. Steve's older brother got this cool new car. He said it can go from a stopped position to 80 miles per hour in ten seconds. His brother is describing the car's A. acceleration. *** B. average velocity. C. instantaneous speed. D. average speed. 6. Radar devices are used by ...

*August 23, 2016 by Summer Moriarty*

**algebra**

A boy walked for 4 hours and cycled for 3 hours,covering a total distance of 74 kilometers,later he walked for 2 hours and cycled for 4 hours ,covering 82 kilometers,what were his average speed of walking and his average speed of cycling if his speed was constant in the two ...

*March 13, 2013 by 007*

**Physics**

1) A jetliner, traveling northward, is landing with a speed of 69.3 m/s. Once the jet touches down, it has 787 m of runway in which to reduce its speed to 13.6 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take the direction of ...

*May 27, 2012 by Hannah*

**science**

1.a modern train traveling at a constant speed around a circular track has a constant velocity true or false 2.which of the following would be affected if a soaring eagle change direction but remained at a constant speed? A.acceleration only B.velocity only C.acceleration and ...

*February 25, 2015 by Hannah*

**Physics**

A student walks from her apartment a distance d=139m to the bus stop at a speed of v1= 1.40m/s. The she realizes that she has forgotten her crib sheet for her exam and so runs back to her apartment to pick it up and returns to the bus stop at a speed v2= 4.80m/s. What is her ...

*September 18, 2015 by Janine*

**Physics**

A runner runs 2.9 km in 9 min and then takes 30 min to walk back to the starting point. (a) What is the runner's average velocity for the first 9 min? _______ km/h (b) What is the average velocity for the time spent walking? _______ km/h (c) What is the average velocity for ...

*September 12, 2010 by MeganErin*

**Physics**

A jogger runs eastward in a straight line with an average speed of 2.25 m/s for 4.98 min and then continues with an average speed of 1.58 m/s for 2.18 min. (Hint: time is in minutes and velocity is in meters/second) (a) What is her total displacement (in m)? _____________m (b...

*September 13, 2012 by arcos15*

**Maths**

A man walk from his home to town ,6 km away at a speed of 4 km/h and return s home by tanga at speed of 12 km/h.what is the mans average speed for the whole journey.

*November 3, 2016 by Hussan*

**Physical science check my answers**

2. On my bike, I was able to travel 40 miles in one hour. From this information, we can determine the bike's A. speed. *** B. velocity. C. acceleration. D. direction. 3. The local news team is tracking the storm and has reported that it is traveling north, northwest at 20 ...

*August 23, 2016 by Summer Moriarty*

**Physics**

A bowling ball encounters a 0.76m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. If the translational speed of the ball is 3.80m/s at the bottom of the rise, ...

*March 21, 2007 by CJ*

**physic**

Average Speed 1. In the 2008 Summer Olympics, Usain Bolt won the 100-m race in 9.69 s. What was his average speed? 2. Light from the sun reaches Earth in 8.3 min. The speed of light is 3.0108 m/s. How far is Earth from the sun? 3. In Major League Baseball, the distance between...

*November 3, 2011 by ray*

**chemistry**

Is average speed (u) the same as root mean square velocity? I found a formula for root mean square velocity which I know is also used for average speed: (3RT/MM)^1/2 Is that right? I don't know what that is supposed to be an average OF, but is all likelihood it is a root mean ...

*January 6, 2007 by Chris*

**physics**

a bus travels from one point to another wuth a speed of 40km/h and returns with a speed of 60km/h.what is e average speed and average velocity of the bus?

*August 7, 2014 by Anonymous*

**Physics**

a bus travels from one point to another wuth a speed of 40km/h and returns with a speed of 60km/h.what is e average speed and average velocity of the bus?

*August 7, 2014 by Zubi*

**physics**

A 30kg sled(with rider) slides without friction down a small, ice covered hill. On the first run the sled starts from rest and its speed at the bottom of the hill is 8.50m/s. On the second run the sled starts with a speed of 1.50m/s at the top. Find the speed of the sled at ...

*November 29, 2015 by Shakedown78*

**Physics**

A dog running in the +y-direction at 6.6m/s hears its owner call from behind, and 3.0secs later it's running at the same speed in the opposite direction. Compute the dog's change in velocity. Compute its average acceleration.

*February 9, 2012 by Tig*

**math**

A motorist drive 360 km from one city to another in 4.2 hours but makes the return trip in only 3 hours.What are the average speed and average velocity at each half? what is the total speed and velocity at m/s.

*January 25, 2016 by Anonymous*

**Physics**

1. How is average speed related to instantaneous speed? What certain conditions must be met for the two variables to have the same or close value? 2. Cite one practical example on the use of the concepts of instantaneous speed, average speed in observing safety on the road.

*July 2, 2014 by Jade*

**physics**

You walk for 6.44 km with at a constant velocity of 2.55 m/s due west, turn around, and then walk with an average velocity of 0.440 m/s due east. From your starting point to your destination, your overall average velocity is 1.33 m/s due west. During the trip, how far east did...

*September 22, 2016 by max*

**physics**

a man drives with an average speed of 25 mph for 20 minutes. he rests at his destination for 1 hour and then returns home with an average speed for this leg of the trip of 15 mph A) what is his average speed for the round trip B) What is his average velocity for the round trip

*November 14, 2012 by Matt*

**physic**

Block _____ Name ________________________________________ Date __________ Average Speed 1. In the 2008 Summer Olympics, Usain Bolt won the 100-m race in 9.69 s. What was his average speed? 2. Light from the sun reaches Earth in 8.3 min. The speed of light is 3.0108 m/s. How ...

*November 3, 2011 by Anonymous*

**Physics **

A person walking across the room with a constant speed of 2m/s, and they run back with a constant speed of 8m/s. What is their average speed for the trip? I know the answer is 3.2m/s but I need help knowing how it's done. Greatly appreciated!

*February 27, 2017 by Maria Garcia *

**Physics **

A person walking across the room with a constant speed of 2m/s, and they run back with a constant speed of 8m/s. What is their average speed for the trip? I know the answer is 3.2m/s but I need help knowing how it's done. Greatly appreciated!

*February 27, 2017 by Maria Garcia *

**Physics**

A runner covers one lap of a circular track 40.0 m in diameter in 62.5s (a) for that lap what were her average speed and average velocity? (b) if she covered the first half lap in 28.7 s, what were her average speed and average velocity for that half lap?

*June 3, 2009 by Sarah*

**sunshine**

Distinguish between instantaneous speed and average speed. A man drives a car a distance of 200km at an average speed of 44kmh-1. What must be his average speed fot the next 220 km if he is to cover the total distances in 9 hours?

*October 10, 2015 by olagunju love*

**physics**

how far can a cyclist travel in 2.5 hrs along a straight road if her average speed is 18 km. per hr? (ignore the actual question, what my teacher wants me to do is find the average speed and average velocity using these measurements.) any help is greatly appreciated! :) THANKS

*July 8, 2008 by marina*

**Physics**

A person walks first at a constant speed of 4.70 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 2.80 m/s. (a) What is her average speed over the entire trip? (b) What is her average velocity over the entire ...

*October 8, 2009 by Zoe*

**physics**

A race car traveling northward on a straight, level track at a constant speed travels 0.750km in 20.0s. The return trip over the same track is made in 25.0s. What is the average velocity of the car in m/s for the first leg of the run? What is the average velocity for the total...

*January 30, 2011 by Anonymous*

**physics**

A race car traveling northward on a straight, level track at a constant speed travels 0.750km in 20.0s. The return trip over the same track is made in 25.0s. What is the average velocity of the car in m/s for the first leg of the run? What is the average velocity for the total...

*January 29, 2013 by Anonymous*

**physics**

a race car traveling northward on a straight, level track at a constant speed travels 0.750 km in 20.0 s. the return trip over the same track is made in 25.0 s. a) what is the average velocity if the car in m/s for the first leg of the run? b) what is the average velocity for ...

*March 30, 2014 by Katie*

**Math College 115**

A hiker can walk 2 miles in 43 minutes. What is his average speed in miles per hour? Round your answer to two decimal places. The hiker's average speed is ___ miles per hour. What formula can be used to find the distance travel, d, in miles in t hours?

*September 4, 2016 by Hneo*

**physics**

Calculate the magnitude of the linear momentum for the following cases. (a) a proton with mass 1.67 10-27 kg, moving with a speed of 4.00 106 m/s (b) a 16.5 g bullet moving with a speed of 270 m/s (c) a 70.5 kg sprinter running with a speed of 12.5 m/s (d) the Earth (mass = 5....

*July 7, 2008 by Elisa*

**physics**

Ilya and Anya each can run at a speed of 7.80 and walk at a speed of 3.20 . They set off together on a route of length 5.00 . Anya walks half of the distance and runs the other half, while Ilya walks half of the time and runs the other half. Part A How long does it take Anya ...

*September 29, 2012 by sammy*

**Science Plz help**

1. Acceleration involves a change in ____. speed velocity displacement direction 2. Which of the following statements about acceleration is true? Like velocity, acceleration has a direction. Your acceleration is positive when you speed up. Your acceleration is negative when ...

*March 29, 2013 by Jman*

**physics**

You are on a train traveling east at speed of 17.0 m/s with respect to the ground. 1) If you walk east toward the front of the train, with a speed of 1.1 m/s with respect to the train, what is your velocity with respect to the ground? 2) If you walk west toward the back of the...

*September 10, 2012 by ali*

**physics**

You are walking along Main street one afternoon. At 1 PM you are 50 meters east of the intersection of Main and Elm streets. You walk due east for 30 seconds, ending up 80 meters east of the intersection of Main and Elm. You then make a left turn and walk due north for 30 ...

*August 25, 2013 by Anonymous*

**math**

Benjamin and Bob are marathon runners on a run from landmarks P to Q. Benjamin runs half the way and walks the other half. Bob runs half the time, and walks the other half. The two run at the same speed and walk at the same speed. Who finishes first?

*September 22, 2014 by j*

**physics**

A commuting student leaves home and drives to school at an average speed of 41.0 km/h. After 24.0 min she realizes that she has forgotten her homework and returns home to get it at the same average speed. It takes 9.0 min to find the report, after which the trip to school 41.0...

*August 29, 2011 by bill*

**physics**

A commuting student leaves home and drives to school at an average speed of 42.0 km/h. After 20.0 min he realizes that he has forgotten his homework and returns home to get it at the same average speed. It takes 7.0 min to find the report, after which the trip to school 42.0 ...

*September 8, 2013 by Lauren*

**physics 111**

A runner times his speed around a circular track with a circumference of 0.508 mi. At the start he is running toward the east and the track starts bending toward the north. If he goes halfway around, he will be running toward the west. He finds that he has run a distance of 0....

*September 14, 2007 by bob*

**Physics(thank you for the help)**

A hot-air balloon is rising upward with a constant speed of 2.45 m/s. When the balloon is 3.22 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground? I know that average speed ...

*May 27, 2012 by Hannah*

**physics**

A race car travels northward on a straight, level track at a constant speed travels 0.745 km in 22.0 s. The return trip over the same track is made in 27.0 s. (a) What is the average velocity of the car in m/s for the first leg of the run? m/s (b) What is the average velocity ...

*March 3, 2013 by fatimah*

**physics**

A car travels on a straight road for 40km at 30km/h. It then continues in same direction for 40km at 60km/h. a)What is the average velocity of the car during the 80km trip?(assume it moves in positive x direction) b)What is the average speed? c)graph and indicate how average ...

*September 10, 2006 by sara*

**Displacement and Velocity**

A turtle moves 3.5m [E] in 136 s and then moves 1.7m [W] in 88 s. a) What is the average speed of the turtle? b) What is the average velocity of the turtle? average speed: D/T = 3.5m + 1.7m = 5.2m/ 224s = 0.024m/s average velocity:??????????/

*November 13, 2010 by Anonymous*

**Dynamics**

Car A is moving at a constant speed Va=75 km/h, while car C is moving at a constant speed Vc=42 km/h on a circular exit ramp with radius p=80m. Determine the velocity and acceleration of C relative to A.

*January 30, 2011 by Matt*

**Physics true false**

true false The speed of a particle is always positive. True False The average speed of a particle is equal to the magnitude of its average velocity. True False The acceleration of a particle can be non-zero when its speed is constant. True False When the average velocity of a ...

*February 26, 2013 by Robin*

**Physics**

In laboratory situations, a projectile’s range can be used to determine its speed. To see how this is done, suppose a ball rolls off a horizontal table and lands 1.2m out from the edge of the table. If the tabletop is 95cm above the floor, I figured out the ball is in the ...

*October 5, 2014 by Anonymous*

**science**

At the annual turtle races, Poindexter, the record holder, is trying to retain his title. As the race begins, Poindexter starts off racing North with a speed of 0.025 m/s. He retains this speed for 0.5 meters at which time he speeds up to 0.10 m/s. He continues at this rate ...

*October 21, 2009 by :)*

**science**

At the annual turtle races, Poindexter, the record holder, is trying to retain his title. As the race begins, Poindexter starts off racing North with a speed of 0.025 m/s. He retains this speed for 0.5 meters at which time he speeds up to 0.10 m/s. He continues at this rate ...

*October 21, 2009 by :)*