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March 8, 2014

# Search: heather and matt walk with an average velocity of .68 milse per second eastward if it takes them 34 min to walk to the store what is their displacement

Number of results: 68,987

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?
Wednesday, September 5, 2007 at 9:36pm by Susie

PHYSICS
HEATHER AND MAT WALK WITH AN AVERAGE VELOCITY OF 0.98 M/S EASTWARD. IF IT TAKES THEM 34 MIN TO WALK TO THE STORE, WHAT IS THEIR DISPLACEMENT?
Wednesday, September 26, 2007 at 8:06pm by DAISY

physics
Heather and Matthew walk with an average velocity of 0.98 m/s eastward. If it tskes them 34 min to walk to the store, what is their displacement?
Thursday, August 21, 2008 at 7:35pm by Ashley

physics
heather and Matthew walk with an average velocity of .89 m/s eastward. it takes them 44 min to walk to the store. what is their displacement?
Wednesday, September 1, 2010 at 11:39pm by Marissa

Physics
Heather and Matthew walk with an average velocity of 0.98 m/s eastward. If it takes them 34 min to walk to the store, what is their displacement?
Wednesday, September 8, 2010 at 6:03pm by Jasmine

Physics
i have the answers to these i just need explanations; steps on how to do them 1. Heather and Mathew walk with an average velocity of 0.98 m/s eastward. If it takes them 34 min to walk to the store, what is their displacement? 2.If Joe rides his bicycle in a straight line for ...
Wednesday, January 28, 2009 at 6:07pm by y912f

physics
Heather and Matthew walk eastward with a speed of 0.76 meters per second east. If it takes them 50 minutes to walk to the store, how far have they walked? Answer in kilometers
Monday, September 30, 2013 at 7:56pm by Christian

Physics
Heather and Matthew walk eastward with a speed of 0.94 m/s east. If it takes them 57 min to walk to the store, how far have they walked? Answer in units of km
Tuesday, September 4, 2012 at 6:53pm by tgarci10

Physics
Heather and Matthew walk eastward with a speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they walked? Answer in units of km
Tuesday, September 4, 2012 at 7:51pm by Andres

Physics
Heather and Matthew walk eastward with a speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they walked? Answer in units of km
Tuesday, September 4, 2012 at 8:01pm by Andres

Physics
Heather and Matthew walk eastward with a speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they walked? Answer in units of km
Tuesday, September 4, 2012 at 8:03pm by Andres

physics
Heather and Matthew walk eastward with a speed of .85 m/s east. If it takes them 50 min to walk to the store, how far have they walked? Answer in units of km
Thursday, October 4, 2012 at 7:02pm by Diondre

physics
rewriting this, since it was typed wrong. In reaching her destination, a backpacker walks with an average velocity of 1.34 m/s, due west. This average velocity results because she hikes for 6.44 km with an average velocity of 2.68 m/s, due west, turns around, and hikes with an...
Saturday, September 18, 2010 at 7:27pm by jo

Math
Suppose that humans walk about 10,000 steps per day on average. Your average step is probably about 18 inches. If so, how many inches per day do you walk? How Many feet per day do you walk? How many miles per day do you walk, to the nearest whole number?
Friday, January 23, 2009 at 9:42am by Bob

math
Suppose that humans walk about 10,000 steps perday on average. Your average step is probably about 18 inches. If so, how many inches per day do you walk? How many feet per day do you walk? How many miles per day do you walk, to the nearest whole mile?
Sunday, January 25, 2009 at 10:10am by Bob

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...
Thursday, September 13, 2012 at 12:04am by arcos15

Pre Calculus
If you are riding on a Ferris wheel that is 60 feet tall and it takes 5 minutes to make a one revolution, what is your linear velocity? A. 0.62 feet per second B. 0.31 feet per second C. 37.68 feet per second D. 3.14 feet per second E. 9.42 feet per second
Monday, April 22, 2013 at 9:35pm by Deontre

Physics
Average velocity in first second = g/2 = 4.9 m/s Average velocity in 2nd second = 3g/2 = 14.7 m/s Average velocity in 3rd second = 5g/2 = 24.5 m/s Average velocity in 4th second = 7g/2 = 34.2 m/s, which is seven times the first second. It takes 4 seconds.
Monday, June 13, 2011 at 10:43pm by drwls

physics
A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final velocity acquired by the car is 25m per second .Find The initial velocity and acceleration of car
Tuesday, July 2, 2013 at 9:33am by Anonymous

physics
A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final velocity acquired by the car is 25m per second .Find The initial velocity and acceleration of car
Tuesday, July 2, 2013 at 9:34am by Anonymous

physics
A car travels a distance of 100m per second with a constant acceleration and average velocity of 20m per second .The final velocity acquired by the car is 25m per second .Find The initial velocity and acceleration of car
Tuesday, July 2, 2013 at 9:44am by Anonymous

physics
Heather and Matthew walk eastward with a speed of 0.98 m/s. If it takes them 34 min to walk to the store, how far have they walked? If Joe rides south on his bicycle in a straight line for 15 min with an average speed of 12.5 km/h, how far has he ridden? It takes you 9.5 min ...
Wednesday, September 20, 2006 at 12:30am by anonymous

Heather and Mathew walked eastward with a speed of 9.8 m/s. If it takes them 34 min. to walk to the store, how far have they walked?
Tuesday, December 14, 2010 at 6:14pm by ffdas

physics
A stream is 30. meters wide and its current flows southward at 1.5 meters per second. A toy boat is launched with a velocity of 2.0 meters per second eastward from the west bank of the stream a. what is the magnitude of the boat's resultant velocity as it crosses the stream? b...
Sunday, October 3, 2010 at 6:33pm by elana

Math
What is the average births per day if the average birth per second is 4 1/5? What is the average deaths per hour if the average death per second is 1.7?
Tuesday, September 14, 2010 at 10:36pm by Jay

A stream is 30. meters wide and its current flows southward at 1.5 meters per second. A toy boat is launched with a velocity of 2.0 meters per second eastward from the west bank of the stream a. what is the magnitude of the boat's resultant velocity as it crosses the stream? b...
Sunday, October 3, 2010 at 8:23pm by elana

math
Suppose that humans walk about 10,000 steps per day, on awerage. 1. Your average step is probably about 18 inches. If so, how many inches per day do you walk? 2. How many feet per day do you walk? 3. How many miles per day do you wa;k, to the nearest whole mile?
Sunday, January 31, 2010 at 9:38pm by Katelee

physics
A car tavels a distance of 100 m with a constant acceleration and average velocity of 20 m per second .The final velocity acquire D by the car is 25m per second .find the initial velocity and acceleration of car
Tuesday, July 2, 2013 at 9:42am by spoorthi.p

Calculus
Suppose that an object moves along an s-axis so that its location is given by s(t)=t^2+4t at time t.(Here is in meters and is in seconds.) (a) Find the average velocity of the object in meters per second over the time interval t=2 to t=9 seconds. Average velocity = ? m/s. (b) ...
Friday, January 25, 2013 at 4:43pm by Anonymous

Physics
n reaching her destination, a backpacker walks with an average velocity of 1.19 m/s, due west. This average velocity results, because she hikes for 5.07 km with an average velocity of 2.22 m/s due west, turns around, and hikes with an average velocity of 0.749 m/s due east. ...
Sunday, August 28, 2011 at 10:32pm by Anonymous

physics
In reaching her destination, a backpacker walks with an average velocity of 1.20 m/s, due west. This average velocity results, because she hikes for 5.94 km with an average velocity of 3.28 m/s due west, turns around, and hikes with an average velocity of 0.778 m/s due east. ...
Sunday, January 22, 2012 at 1:01pm by Alex

Physics
In reaching her destination, a backpacker walks with an average velocity of 1.30 m/s, due west. This average velocity results, because she hikes for 6.22 km with an average velocity of 3.44 m/s due west, turns around, and hikes with an average velocity of 0.321 m/s due east. ...
Tuesday, September 11, 2012 at 7:08pm by StressedStudent

physics
In reaching her destination, a backpacker walks with an average velocity of 1.26 m/s, due west. This average velocity results because she hikes for 6.44 km with an average velocity of 2.60 m/s, due west, turns around, and hikes with an average velocity of 0.470 m/s, due east. ...
Tuesday, October 20, 2009 at 9:47pm by jesica

Science
divide the total distance by the total time. That gives the average SPEED. If you divide the total DISPLACEMENT (which includes the effect of the directions of the VELOCITY vectors) by the total time you get the average VELOCITY for example walk one mile north at 1 mile/hr ...
Friday, February 14, 2014 at 11:14am by Damon

divide the total distance by the total time. That gives the average SPEED. If you divide the total DISPLACEMENT (which includes the effect of the directions of the VELOCITY vectors) by the total time you get the average VELOCITY for example walk one mile north at 1 mile/hr ...
Friday, February 14, 2014 at 11:08am by Damon

physics
Learning Goal: To learn to read a graph of position versus time and to calculate average velocity. In this problem you will determine the average velocity of a moving object from the graph of its position as a function of time . A traveling object might move at different ...
Sunday, January 30, 2011 at 5:46pm by SAM

physics
Here's a physics problem. I dont care about the answer, i just want to know how to do it. dont have to be too detailed.. but i dont really kno how to start this 1.) A model rocket blasts off from the ground rising straight upward with a constant acceleration that has a ...
Saturday, September 18, 2010 at 6:45pm by jo

Physics
In reahcing her destination, a backpacker walks with an average velocity of 1.29 m/s, due west. This average velocity results because she hikes for 6.44 km with an average velocity of 2.59 m/s, due west, turns around, and hikes with an average velocity of 0.44 m/s, due east. ...
Tuesday, September 18, 2012 at 2:12pm by Donald

Physics
for this question the answer is 680..the answer i get is 684 please help 1. it takes you 9.5 mins to walk with an average velocity of 1.2 meters per second to teh north from the bus stop to the museum entrance. what is your displacement? i did: 9.5 * 60=570 570 * 1.2 = 684
Friday, January 30, 2009 at 7:11pm by y912f

If an object's velocity changes from 2 meters per second to 6 meters per second in five seconds, its acceleration is calculated as follows:- 6-2)/20 = 80m per second per second or or 80m per second squared (m/s2)
Sunday, October 16, 2011 at 9:29am by Trissy

Calculus
If a ball is thrown in the air with a velocity 44 ft/s, its height in feet t seconds later is given by y = 44t - 16t2. (Round your answers to one decimal place.) (a) Find the average velocity for the time period beginning when t = 2 and lasting 0.5 second. ft/s (b) Find the ...
Monday, January 17, 2011 at 9:08pm by Ethan

physics
It takes you 8.2 min to walk with an average velocity of 1.3 m/s to the north from the bus stop to the museum entrance. How far did you walk?
Sunday, September 2, 2012 at 9:21pm by Carrie

Calculas
If a ball is thrown in the air with a velocity 44 ft/s, its height in feet t seconds later is given by y = 44t - 16t2. (a) Find the average velocity for the time period beginning when t = 2 and lasting 0.5 second. ft/s (b) Find the average velocity for the time period ...
Friday, April 3, 2009 at 4:32am by Mimi

calculus
The position of a particle moving in a straight line during a 2-second trip is given below. s(t) = 2t 2 - 6t + 7 cm (a) What is the average velocity for the entire trip? (Assume the 2 second interval starts at t = 0.) 1 cm/second (b) Find a time at which the instantaneous ...
Tuesday, September 21, 2010 at 10:42pm by Mike

physics
It takes you 9.7 min to walk with an average velocity of 2.2 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m
Tuesday, September 6, 2011 at 9:08pm by ashley

physics
it takes you 8.8 minutes to walk with an average velocity of 1.3 m/s to the north from the bus stop to the museum entrance. how far did you walk? answer in units of m
Friday, September 23, 2011 at 9:23pm by jasmin

physics
It takes you 7.3 min to walk with an average velocity of 1.5 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m
Friday, September 21, 2012 at 9:45pm by Carl

Math
Okay ... just checking on how to figure this ... Here is the problem: Some researchers estimate that humans walk about 10,000 in their lifetimes, on average. Assume that the average life span is 70 years. a) about how many miles per year does the average person walk? would you...
Thursday, November 29, 2007 at 9:25pm by Emily

physics
What force must be exerted on a car of mass 1825 kilograms in order to make it accelerate at 26 meters per second per second?
Friday, February 4, 2011 at 11:25pm by heather

Mathematics
Suppose humans walk 10,000 steps a day on average. If your average step it about 18 inches, how many inches do you walk in a day? How many feet per day? How many miles a day?
Tuesday, January 18, 2011 at 3:11pm by Daniel

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 ...
Sunday, August 25, 2013 at 11:03am by Anonymous

Physics
A particle moved along the x axis with a constant acceleration of -85.0 meters per second squared. The initial position of the particle was at the origin and its initial velocity was +325 meters per second. Find the position of the particle at T=4.0 seconds. Please walk ...
Monday, June 11, 2012 at 2:48pm by Jen

physics
A runner training for a race times 400 meter laps. Lap 1 60sec, Lap 2 57sec, Lap 3 55sec, Lap 4 53sec. What is the average velocity in meters per second? a. 0.563 b. 7.1 c. 14.2 d. 56.25 please help me, I using the average velocity formula but still i get it wrong
Friday, February 26, 2010 at 11:20am by mary1111

math
Below is the rule for calculating the velocity of a falling object. Use this rule to calculate the rate, expressed in feet per second, that a piano, dropped 3 seconds ago, is falling. V(t) = 32t A. 192 feet per second B. 288 feet per second C. 96 feet per second D. 3 feet per ...
Wednesday, October 10, 2012 at 9:52am by lo

Applied Physics
The velocity of an object is +47 meters per second at 3.0 seconds and is +65 meters per second at 12.0 seconds. The average acceleration of the object is 2.0 m/s to the fourth power
Saturday, May 14, 2011 at 8:52pm by EJ

Physics
The instant before a batter hits a .14 KG baseball, the velocity of the ball is 45 meters per second west. The instant after the batter hits the ball, the ball's velocity is 35 meters per second eat. The bat and ball are in contact for 1.0 x 10 ^-2 second. How do I determine ...
Tuesday, March 9, 2010 at 7:25pm by Nicole

Physics
The instant before a batter hits a .14 KG baseball, the velocity of the ball is 45 meters per second west. The instant after the batter hits the ball, the ball's velocity is 35 meters per second eat. The bat and ball are in contact for 1.0 x 10 ^-2 second. How do I determine ...
Tuesday, March 9, 2010 at 7:25pm by Nicole

physics
River A & B flow into river C. River A is 40 ft wide and is flowing at an average of 2.47 mph. River B is 25 ft wide and has a flow rate of 1125 cubic feet per second. Assume all rivers have a uniform depth of 15 ft. If river C is 100 ft wide, what is its average velocity [...
Wednesday, October 19, 2011 at 12:22am by Brian

math/physics
The amount of heat per unit time that leaks out of the house is approximately proportionate to difference between the inside and outside temperature. The thermostat will make sure that as much heat is produced by the heating as is leaking away, so that thee temperature stays ...
Friday, April 26, 2013 at 6:48pm by Count Iblis

physics
A 48.0 kg child is stationary in the middle of an ice rink (no friction). A 0.750 kg football is thrown with a velocity of 21.2 m/s moving eastward. The child catches the ball and together they slide off in the eastward direction with a velocity of 0.326 m/s. Take east to be ...
Tuesday, July 16, 2013 at 4:47pm by ODU

Math
Jill and Matt run on a 400-meter-long oval track. They each run 10 laps daily and both run in the same lane. One day, they begin at the same point, but ran in opposite directions. Jill ran at a constant speed that was 2 meters per second faster than Matt's constant speed. Jill...
Wednesday, October 22, 2008 at 6:34pm by Natalie

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 ...
Sunday, September 12, 2010 at 2:47pm by MeganErin

college algebra
a bus driver wants to average at least 40 miles per hour on a 70 mile trip. if the first 35 miles takes the driver 1 hour what should be the lowest average speed for the second 35 miles?
Sunday, October 17, 2010 at 7:29pm by matt

physics
It takes you 7.6 min to walk with an average velocity of 2.5 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m What is your direction? (multiple choice) 1. West 2. North 3. South 4. East
Thursday, September 29, 2011 at 5:52pm by Sam

Calculus Antiderivative Problem
An object moves along a coordinate line with acceleration a(t)=(t+2)^3 units per second per second. a). The initial velocity is 9 units per second. The velocity function is v(t) = b).The initial position is 2 units to the right of the origin. The position function is x(t) =
Friday, November 8, 2013 at 7:29pm by Claire

physics
A particle experiences a constant acceleration that is south at 2.50 meters per second squared. At t=0, its velocity is 40.0 meters per second east. What is its velocity at t=8.00 seconds?
Sunday, September 27, 2009 at 3:36pm by Need Help

algebra 1
A ball is tossed upward with an initial velocity of 14.2 meters per second. The equation below shows the velocity (v) of the ball after t seconds. v = –9.8t + 14.2 After how many seconds is the velocity 0 meters per second? Round the answer to the nearest tenth of a second.
Thursday, February 14, 2013 at 7:45pm by Anonymous

physics
How would I find the acceleration of a car if it traveled 1.5 meters in one second? If it is accelerating at a constant rate with zero initial velocity, then use the formula X = (1/2) a t^2 and solve for the acceleration, a. X = 1.5 m, and t = 1 s. It could be not accelerating...
Friday, September 22, 2006 at 2:47am by anonymous

physics!
Just add the two vectors. The eastward displacement is X = 100 + 50 cos35 = 140.96 miles The northern displacement (assuming north is positive) is Y = -50 sin35 = -28.68 miles (The minus sign is there because the second vector is south of east, not north). Total displacementis...
Tuesday, January 29, 2013 at 8:22pm by drwls

Physics
convert cm to mm 8.4 cm times 10mm per cm equals 84mm 84mm divided by 3.5mm per s equals 24s calculate average velocity for the first half of trip 50.0m divided by 20.0 equals 2.5m per s calculate average velocity for 2nd half of trip 50.0 m divided by 22.0 s equals 2.27 m per...
Thursday, January 29, 2009 at 5:11pm by tee

physics
A boy with a mass of 35.4 kg comes running up behind his stationary father, whose mass is 105.3 kg. If the boy’s velocity before the collision is 8.20 m/s eastward, and his father’s velocity after the collision is 3.10 m/s eastward, find the boy’s velocity after the collision...
Tuesday, July 16, 2013 at 4:57pm by I have answer just need help with work

math
The velocity(in feet per second) of a bouncing ball was recorded every second. The table shows the velocity for each second. Time(sec):|1|2|3|4|5| Velocity(ft/sec)|-15|-6|2|10|-11| What is the average velocity of the bouncing ball over 5 seconds? What is the highest record ...
Monday, October 28, 2013 at 7:48pm by Kai-Cin

physics
would the acceleartion of a model car traveling 1.5 meters per second by 0.025 or just 1.5 per second? Your question makes no sense. Acceleration is CHANGE of velocity per unit time.
Friday, September 22, 2006 at 8:49am by anonymous

Physics
How many slices of pizza must you eat to walk for 1.0 h at a speed of 5.0 km/h? (Assume your mass is 68 kg). Our book provides: -One slice of pizza's energy content is 300 cal, or 1260 KJ. -To walk at 5 km/h= 380 W of a 68 kg individual. Thanks!!!
Thursday, April 14, 2011 at 12:15am by Kirsten

Math
Ryan can cover the 90 foot distance with an average spped of twenty feet per second... What is Ryans average speed in miles per hour?
Monday, March 21, 2011 at 6:43pm by popcorn911

calculus
So, the question is stating that the time period you are looking for is when the ball is thrown at 1 second and goes to .1 second. So, you want the velocity of the ball at the interval [1,1.1]. Velocity is the change in distance/ change in time. What is the change of the ...
Wednesday, September 14, 2011 at 11:17pm by Anon

physics
i REALLY dont get this problem. PLEASE HELP!!! the position of a runner during a 3 second time interval the runners position changes from x1 = 50m to x2 = 30.5m what was the runners average velocity? find the average speed as well as the average velocity.
Tuesday, July 8, 2008 at 6:14pm by alyson

calculus
A ball is thrown vertically upwards from a height of 6 ft with an initial velocity of 60 ft per second. How high will the ball go? Note that the acceleration of the ball is given by a(t)= 32 feet per second per second.
Thursday, December 6, 2012 at 1:49pm by miranda

Physics
Find the average velocity over the time interval from 1 to 3 seconds. Express your answer in meters per second to the nearest integer.
Sunday, January 30, 2011 at 7:45pm by Whitney

calculus
At t=0 , a particle starts at the origin with a velocity of 6 feet per second and moves along the x-axis in such a way that at time t its acceleration is 12t^2 feet per second per second. Through how many feet does the particle move during the first 2 seconds?
Sunday, February 19, 2012 at 5:40pm by illy

algebra
The formula below can be used to find the distances (d) traveled by an object, where v represents the initial velocity of the object, t represents the time, in seconds, and a represents the acceleration, in meters per second squared. d=vt+1\2at2 A bicycle traveling at a ...
Wednesday, September 22, 2010 at 11:27pm by curtina blue

AP Physics
Consider the velocity curve of a one dimensional motion along the x-axis. The initial position is x= 10 m. The scale on the horizontal axis is 2 s per division and on the vertical axis 2 m/s per division. A) What is the position at t=4 s? B) what is the average velocity ...
Wednesday, September 28, 2011 at 11:53am by Ana

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
Wednesday, November 14, 2012 at 4:38pm by Matt

physics
A car is traveling along a straight road at a velocity of +32.7 m/s when its engine cuts out. For the next 1.04 seconds, the car slows down, and its average acceleration is . For the next 5.23 seconds, the car slows down further, and its average acceleration is . The velocity...
Tuesday, September 18, 2012 at 6:09pm by gary

trig
A wheel rotates at 100 revolutions per second. find the angle velocity in radians per second.
Wednesday, May 16, 2012 at 9:32pm by makaela

math word problem
M.A. , drwls did not say they went 4 miles per second AND 6 miles per second The velocity is in m/s , which is metres per second. The conclusion was that Andy's velocity was 10 m/s and Kate's velocity was 6 m/s I agree with drwls about Andy's speed. At his speed he would be ...
Tuesday, September 7, 2010 at 6:16am by Reiny

Physics
Require that R w^2 = g w is the angular velocity in radians per second and R is the radius. Solve for w. Divide w by 2 pi to get revolutions per second.
Tuesday, October 9, 2007 at 12:02am by drwls

Applied Calculus
Suppose that an object is thrown down towards the ground from the top of the 1100-ft tall Sears Tower with an initial velocity of – 20 feet per second (the negative velocity indicates that the object is moving towards the ground). Given that the acceleration due to gravity of ...
Friday, April 20, 2012 at 4:41pm by Marie

Earth Science
1A student measures the velocity of the water in a stream as 2.5 meters per second. The actual velocity of the water is 3.0 meters per second. What is the approximate percent deviation of the studentâ€™s measurements? (1)0.50% (2)17% (3)20% (4)50% Is it (2)?
Wednesday, June 18, 2008 at 1:22pm by Anonymous

geometry
a car traveling at 30 meters per second begins to slow down at a constant rate. after 2 seconds its velocity is 16 meters per second. write an equation that represents the cars velocity v after t seconds
Wednesday, December 7, 2011 at 8:35pm by Anonymous

math
Heather is buying a T-Shirt for \$8. Sales tax is 8 1/4 cents per dollar. How much will Heather pay in sales tax on her purchase
Tuesday, October 2, 2007 at 10:49am by heather

math
Heather is buying a T-Shirt for \$8. Sales tax is 8 1/4 cents per dollar. How much will Heather pay in sales tax on her purchase?
Friday, September 19, 2008 at 1:43pm by heather

physics
That depends upon the interval of time that you are averaging over. Is it a 15 second interval? Where was the second had at the start of the interval? You will need to know that in order to specify the direction of the average velocity. Draw a line between the positions of the...
Thursday, July 21, 2011 at 12:38am by drwls

physics
a clock has its second hand 2 cm long. find the average speed and modulus of average velocity of the tip of the second hand in 15 seconds
Sunday, July 24, 2011 at 1:22am by lavanya

science
A science student drops a rok down a mine shaft. It takes 3 sec. for the rock to hit the bottom of the shaft , at what speed of the rock just before impact? 32 feet per second per second is the acceleration rate of earth. At the end of second 1 the speed is 32 feet per second...
Tuesday, October 24, 2006 at 9:43pm by pat

Math
Ryan is batting a baseball, he presently can cover the 90 foot distance with the average speed of 20 feet per second What is the average speed in miles per hour?
Monday, March 21, 2011 at 7:06pm by popcorn101

Physics
A particle travels counterclockwise around the origin at constant speed in a circular path that has a diameter of 2.50 m, going around twice per second. Point Q is on the path halfway between points P and R, which lie on the x axis and the y axis, respectively. State the ...
Friday, May 25, 2012 at 2:56pm by Rachel

Calc
Note that it said "average velocity", what you tried to do is the instantaneous velocity at a time of t = 1 sec (it said, "lasting 1 second", meaning there was a duration of 1 second) so you want the average velocity between 2 and 3 seconds. height at 2 sec = 30(2) - 4.9(4) = ...
Monday, October 5, 2009 at 11:08pm by Reiny

MATH
An object is fired vertically upward with an initial speed of 68.6 meters per second. After t seconds, the height is shown by y = 4.9t^ + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach?
Thursday, April 26, 2012 at 12:22pm by TrACY

Physics
I suspect the 1/2 second and average was just given to confuse you but you could do it the way I did calculating the change in velocity over he half second and dividing by the time. I suspect that they did not expect you to do all that. The point is that although the ...
Tuesday, August 16, 2011 at 7:38pm by Damon

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