Tuesday

September 16, 2014

September 16, 2014

Number of results: 41,989

**Physics**

An electric vehicle starts from rest and accelerates at a rate of 3.0 m/s2 in a straight line until it reaches a speed of 26 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. a)How much time elapses from start to stop? b)How far does the vehicle travel...
*September 3, 2009 by Nick*

**Physics**

An electric vehicle starts from rest and accelerates at a rate of 2.3 m/s2 in a straight line until it reaches a speed of 17 m/s. The vehicle then slows at a constant rate of 1.4 m/s2 until it stops. (a) How much time elapses from start to stop? (b) How far does the vehicle ...
*January 16, 2011 by Ethan*

**physics**

A car and a motorcycle start from rest at the same time on a straight section of the road. However, the motorcycle starts 29.6 m behind the car. The car accelerates at a uniform rate of 3.9 m/s^2 while the motorcycle accelerates at a constant rate of 4.2 m/s^2. How much time ...
*December 2, 2009 by Alex*

**physics**

a car starts from rest and accelerates at in a straight line at a constant rate of 4.5m/s/s. How far will the car travel in 35 seconds.
*November 22, 2011 by al*

**COLLEGE PHYSICS**

A 1100kg car starts from rest, accelerates for 5 seconds. The magnitude of acceleration is (a)= 4.6m/s2. find the average power generated by the net force that accelerates the vehicle? what do i do here i know that F=ma= 1100x4.6=5060=F and Wnet = 1/2mvf2-1/2mvi2 since it ...
*October 18, 2007 by natali*

**Help! Calculus**

An elevator in a high rise building accelerates and decelerates at the rate of 1 foot per second squared. Its maximum speed is 8 feet per second. It starts from rest, accelerates to its maximum speed and stays at that maximum speed until it approaches its destination where it ...
*November 6, 2013 by Kimmie*

**calculus HELP!**

An elevator in a high rise building accelerates and decelerates at the rate of 1 foot per second squared. Its maximum speed is 8 feet per second. It starts from rest, accelerates to its maximum speed and stays at that maximum speed until it approaches its destination where it ...
*November 6, 2013 by Kimmie*

**science**

An elevator in a high rise building accelerates and decelerates at the rate of 1 foot per second squared. Its maximum speed is 8 feet per second. It starts from rest, accelerates to its maximum speed and stays at that maximum speed until it approaches its destination where it ...
*November 6, 2013 by Jenna*

**Physics**

A truck on a straight road starts from rest and accelerates at 3.0 m/s2 until it reaches a speed of 18.1 m/s. Then the truck travels for 24.5 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.7 s. (a) How long is the ...
*September 10, 2013 by Kelsey*

**physics**

An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.
*December 15, 2010 by sue*

**physics**

An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.
*December 15, 2010 by sue*

**physics**

An electron starts at rest. Gravity accelerates the electron in the negative y direction at 9.80 m/s2 while an electric field accelerates it in the positive x direction at 3.80×106 m/s2. Find its velocity 2.45 s after it starts to move.
*December 16, 2010 by tammy mikols*

**Physics 1**

A subway train starts from rest at a station and accelerates at a rate of 1.60m/s^2 for 14.0 s. It runs at constant speed for 70.0 s and slows down at a rate of 3.50m/s^2 until it stops at the next station. What is the total distance covered?
*September 13, 2007 by Douchan*

**Physics**

A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s^2 for 14.0 s . It runs at constant speed for 70.0 s} and slows down at a rate of 3.50m/s^2 until it stops at the next station. Find the total distance covered.
*September 1, 2010 by Ceci*

**Physics**

an ambulance starts its motion from rest at a hospital and accelerates at a rate of 1.60 m/s^2 for 14.0 s. after that, it travels at constant speed for 70.0 s, and it the slows down at a rate of 3.5 m/s^2 until it stops (vf=o m/s) at the accident seen. find the total distance...
*September 29, 2012 by 010203*

**Physics**

A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s^2 for 14.0 s. It runs at constant speed for 70.0 s and slows down at a rate of 3.50 m/s^2 until it stops at the next station. Find the total distance covered? so far I figured out that I have x=...
*June 4, 2009 by Sarah*

**physics**

A truck on a straight road starts from rest and accelerates at 2.0 m/s2 until it reaches a speed of 20 m/s. Then the truck travels for 20 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0 s. (a) How long is the truck ...
*January 22, 2012 by seanso*

**Physics**

A subway train starts from rest at a station and accelerates at a rate of 1.50m/s^2 for 13.3s . It runs at constant speed for 71.0s and slows down at a rate of 3.48m/s^2 until it stops at the next station. Find the total distance covered. Express your final answer in kilometers
*January 17, 2012 by Kim*

**Physics**

A subway train starts from rest at a station and accelerates at a rate of 1.50m/s^2 for 13.3s . It runs at constant speed for 71.0s and slows down at a rate of 3.48m/s^2 until it stops at the next station. Find the total distance covered. Express your final answer in kilometers
*January 17, 2012 by Kim*

**science-reasoning**

in 5 seconds, a car moving in a straight line increases it's speed from 50km/h to 65km/h, while a truck goes from rest to 15km/h in a straight line. which undergoes greater acceleration? what is the acceleration of each vehicle?
*October 20, 2007 by Drew*

**Physics**

A bus starts from rest at a bus stop and accelerates at a rate of 1.12 m/s^2 for 11.0s. It runs at constant speed for 80.0 s and slows at a rate 1.20 m/s^2 until it stops at the next bus stop. (a) What is the maximum speed attained. (b) Find the total distance covered.
*March 8, 2011 by Paul*

**Physics**

A car accelerates uniformly in a straight line from rest at the rate of 2.7 m/s 2 . What is the speed of the car after it has traveled 58 m? Answer in m/s
*September 18, 2011 by Hayley*

**physics**

A vehicle accelerates from rest at 6.68 m/s/s for 4.1 s. What is the final speed of the vehicle?
*October 4, 2012 by Victoria*

**applied maths**

A tram starts from rest atone station and comes to a stop one minute later at the next. It accelerates uniformly at 2m/s2 until it reaches a speed of 20m/s. It travels at this constant speed for a certain time until it decelerates back to rest at 4m/s2. Find the average ...
*September 10, 2011 by Anonymous*

**physics**

An electron is released from rest in a uniform electric field and accelerates to the north at a rate of 115 m/s2. What are the magnitude and direction of the electric field.
*March 1, 2010 by electric field*

**Physics**

A football player, starting from rest at the line of scrimmage, accelerates along a straight line for a time of 1.5 s. Then, during a negligible amount of time, he changes the magnitude of his acceleration to a value of 1.4 m/s2. With this acceleration, he continues in the ...
*September 26, 2010 by Amanda*

**physics**

A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s2 for 14.0s. It runs at a constant speed for 70.0 s and then slows down at a rate of -3.50 m/s2 until it stops at the next station. a) Sketch a position vs. time graph for this problem. b) Sketch...
*June 4, 2012 by cody*

**physics**

a 1.10 x 10 cubed kg car accelerates from rest for a time period of 5.0 sec. The magnitude of the acceleration is 4.60 m/s squared. determine the average power generated by the force that accelerates the vehicle
*November 16, 2010 by Derick*

**Physics**

Could you please check my answers and units. Thanxs! 1. An automobile starts from rest and accelerates at 3m/s2 for 4 seconds. How fast is it going after acceleration? -I got 12 m/s 3. At time = 0 an automobile already traveling at 30 km/hr. accelerates at 3m/s2 for 2 seconds...
*August 27, 2007 by Emma*

**dynamics**

a motorcycle traffic police starts from rest at point A two seconds after a car speeding at the constant rate of 120 km/h passes point A (where speed limit is 100 km/h only) if the policeman accelerates at the rate of 6 m/s^2 until he reaches the speed of 150 km/h and ...
*April 1, 2013 by mahdi*

**Physics**

A car starts from rest and accelerates unifomly at 3m/s^2. A second car starts from rest 6 seconds later at the same point and accelerates uniformly at 5m/s^2. How long does it take the second car to over take the first car?
*October 20, 2011 by Joe*

**Physics**

A truck on a straight road starts from rest and accelerates at 2.8 m/s^2 until it reaches a speed of 16 m/s. Then the truck travels for 16s at constant speed until the brakes are applied,stopping the truck in a uniform manner in an additional 3.6 s. How long is the truck in ...
*September 9, 2014 by Isaac*

**Classical Mechanics**

During a track event two runners, Mary, and Alice, round the last turn and head into the final stretch with Mary a distance d = 2.0 m in front of Alice. They are both running with the same speed of v0= 5.0 m/s. When the finish line is a distance L= 45.0 m away from Alice, ...
*September 15, 2013 by rya*

**Physics**

Could you please check my answers and units.Also, help me with 3 and 4, I dont quite understand them. Thanxs! 1. An automobile starts from rest and accelerates at 3m/s2 for 4 seconds. How fast is it going after acceleration? -I got 12 m/s 3. At time = 0 an automobile already ...
*August 28, 2007 by Emma*

**Engineering science**

A vehicle with a mass of 1200 kg accelerates uniformly from rest upwards with an incline of 1:25 and reaches a speed of 72 km/h after 2 minutes,calculate: 1.The kineyic energy of the vehicle after 2 minutes 2.The potential energy of the vehicle after 2 minutes
*May 26, 2013 by Ayanda*

**mitx 8.01x Classical Mechanics **

During a track event two runners, Mary, and Alice, round the last turn and head into the final stretch with Mary a distance d = 2.0 m in front of Alice. They are both running with the same speed of v0= 5.0 m/s. When the finish line is a distance L= 45.0 m away from Alice, ...
*September 10, 2013 by youlife*

**Physics**

A car's initial velocity of 13.5 m/s accelerates at a rate of 1.9 m/s^2 for 6.2 s. Then, it accelerates at a rate of -1.2 m/s^2 until it stops. 1) What is the car's maximum speed? 2) What is the total time from the start of the first acceleration until the car is stopped? 3) ...
*February 1, 2012 by Erica*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013 by Anonymous*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013 by Anonymous*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013 by Anonymous*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013 by Anonymous*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013 by Anonymous*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013 by heaven*

**physics**

a train starts from rest and accelerates unifotmly, until it has travled 3.7 km and acquired a velocity of 30 m/s. the train then moves at a constant velocity of 30 m/s for 410 s. the train then slows down uniformly at 0.065 m/s^2, until it reaches a halt. what distance does ...
*June 10, 2013 by heaven*

**physics**

A car accelerates uniformly in a straight line from rest at the rate of 3.2 m/s2. What is the speed of the car after it has traveled 58 m? Answer in units of m/s How long does it take the car to travel 58 m? Answer in units of s
*October 8, 2012 by Jordan Adams*

**Physics**

1. A car starts from rest and accelerates uniformly at 3.0 m/s2. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at 5.0 m/s2. How long does it take the second car to overtake the first car? 2. A ball is thrown downward from the top of a ...
*February 16, 2012 by G*

**Physics**

During a track event two runners, Mary, and Alice, round the last turn and head into the final stretch with Mary a distance d = 4.0 m in front of Alice. They are both running with the same speed of v0= 7.0 m/s. When the finish line is a distance L= 45.0 m away from Alice, ...
*September 12, 2013 by Urgent help*

**physical**

A car starts from rest its acceleration is 2m.s-2 in a straight line. What is it displacement after 10 seconds?
*February 4, 2011 by Zinhle*

**mechanical science**

10. A car is moving in a straight line starts from rest, accelerates uniformly at 12 m/s2 for the first 5s, then travels at uniform speed for the next 2s and finally decelerates uniformly at 4 m/s2 for the next 5s. Draw the acceleration-time graph, velocity-time graphs and ...
*December 20, 2012 by anshuman kumar*

**Calculus Help **

A high-speed bullet train accelerates and decelerates at the rate of 4 ft/s2. Its maximum cruising speed is 90 mi/h. (Round your answers to three decimal places.) (a) What is the maximum distance the train can travel if it accelerates from rest until it reaches its cruising ...
*April 19, 2014 by Ali*

**Physics**

A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of 32.0 m/s. Then the truck travels for 76.0 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.00 s. What is the average ...
*January 28, 2014 by Anonymous*

**science**

A vehicle starts from rest and accelerates with a constant acceleration, covering 200m in 5s. it then continues at a constant velocity for 300m before decelerating with a constant 2m/s^2 deceleration to a stop. what is the maximum speed attained, total time traveled, total ...
*September 9, 2014 by annie*

**physics**

n boat starts from rest and accelerates at a constant rate to a final speed of 28 m/s over a distance of 780 m. How much time will this take?
*February 6, 2012 by Hannah *

**College Physics!!!**

A truck on a straight road starts from rest accelerating at 2.0 m/s2 until it reaches a speed of 20 m/s. Then the truck travels for 20 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0 s. What is the average velocity ...
*October 6, 2008 by Steph*

**Science**

I have some equations that I would like checked. Thanxs! 1. An automobile starts from rest and accelerates at 3m/s2 for 4 seconds. How fast is it going after acceleration? 3m/s^2 / 4 = .75 m/s 2. If an automobile travels at 30 km/hr. for 2 hours, how far does it go? d=(30 km/...
*August 26, 2007 by Emma*

**physics**

An object starts from rest and accelerates at a rate of 2.50 m/s/s for 7.00 seconds. The velocity at the end of the 7.00 seconds is...
*May 22, 2010 by christy*

**physics**

A student starts from rest from his house and accelerates uniformly at the rate of 2m/sec^2 for 30 sec then he apply break for 45 sec and come to rest at his school.how far is his school
*May 27, 2012 by parul*

**physics**

Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then accelerates at 0.08 m/s2 [backward] for 4.0 s.
*June 3, 2014 by grey*

**physics**

Calculate the average velocity for a remote controlled vehicle that starts with a speed of 1.0 m/s [forward] and then accelerates at 0.08 m/s2 [backward] for 4.0 s.
*June 6, 2014 by grey*

**Physics**

a race car driver on a straight track starts the tryout from rest at t = 0 and x = 0. the car accelerates with an acceleration given by a(t) = 0.25t (m/s^2). how far eill the car travel in 12 secs?
*October 14, 2013 by Joe*

**Physics**

An airplane starts from rest and accelerates at a constant rate if 3.00m/s^2 for 30.0s before leaving the ground. A)How far did it move? B) how fast was it going when it took off?
*January 22, 2014 by Sandara*

**physics**

Two charged particles in an accelerator are at rest until an electric field causes them to accelerate away from each other when the field switched is turned on, particle a accelerates to the left at 8.97e+07 m/s2 while particle B accelerates to the right at 7.78e+08 they start...
*October 17, 2010 by Becka*

**Physics**

An aircraft starts from rest and accelerates at 42.5m/s^2 until it takes off at the end of the runway. How long will it take the aircraft to travel down the 2.6km runway? Answer is 11 seconds
*July 3, 2013 by alex*

**physics**

A motorboat accelerates from rest in a straight line at a constant 2.0 m/s2 for a time of 8.0s. Show that it travels 64m in this time.
*February 12, 2011 by Daisha*

**physics**

A vehicle with an initial displacement of 10.om and an initial velocity of 16.0 m/s accelerates at an average rate of 0.50 m/s2 for 4.0 s. What is the vehicle's displacement after 4.0 s?
*November 30, 2011 by terri*

**mechanical science**

a c accelerates from rest in a straight line. after 12 seconds, it's velocity is measured as 42 m/s. use one of the linear equations of motion to calculate the car's acceleration
*January 8, 2013 by john*

**physics**

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 10.0 until the fuel is exhausted. After that, the rocket is in free fall. What's the max height? Ignore air resistance and ...
*September 28, 2011 by Uzz*

**Physics**

Part 1: A car accelerates uniformly in a straight line from rest at the rate of 2.2 m/s2. What is the speed of the car after it has traveled 52 m? Answer in units of m/s. the answer is 15.126 Part 2: How long does it take the car to travel 52 m? Answer in units of s. ???
*September 30, 2010 by autumn*

**physics**

f a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.5 m/s2 , how long does it take for the antelope to reach a speed of 20 m/s?
*February 2, 2010 by lisa*

**physics**

f a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.5 m/s2 , how long does it take for the antelope to reach a speed of 20 m/s?
*February 2, 2010 by lisa*

**physics**

If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.5 m/s2 , how long does it take for the antelope to reach a speed of 18 m/s?
*February 7, 2010 by dale*

**physics**

what is the average velocity of a vehicle that uniformly accelerates from rest to 38 fps?
*September 27, 2011 by lou*

**Physics**

A light-rail train going from one station to the next on a straight section of track accelerates from rest at 1.1 m/s^2 for 20 m . It then proceeds at constant speed for 110m before slowing down at 2.2 m/s^2 until it stops at the station.
*February 4, 2012 by Susan*

**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**

If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.4m/s^2, how long does it take for the antelope to reach a speed of 23 m/s? Ans in s
*January 29, 2010 by JP*

**Physics**

A baby sitter pushing a stroller starts from rest and accelerates uniformly at a rate of 0.682 m/s2. What is the velocity of the stroller after it has traveled 7.74 m? Answer in units of m/s.
*January 10, 2011 by Michael*

**physic**

A baby sitter pushing a stroller starts from rest and accelerates uniformly at a rate of 0.511 m/s 2 . What is the velocity of the stroller after it has traveled 5.38 m? Answer in units of m/s
*September 7, 2011 by Renee*

**physics**

A baby sitter pushing a stroller starts from rest and accelerates uniformly at a rate of 0.770 m/s 2 . What is the velocity of the stroller after it has traveled 5.94 m? Answer in units of m/s
*December 13, 2012 by Anonymous*

**physics**

A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 34.3 . The rocket accelerates for a period of 8.00 before exhausting its fuel. The rocket continues its ascent until its motion is halted by gravity. The rocket then enters ...
*September 19, 2011 by Karina*

**Physics **

If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.4m/s^2, how long does it take for the antelope to reach a speed of 23m/s? ____s
*January 29, 2010 by James*

**Physics**

A police car is at rest beside a road, looking for speeders. A car passes going at a constant speed of 30.0 m/s. The police car starts up 4 seconds later and accelerates at 2 m/s sq. until it reaches a speed of 40m. If the police car maintains this speed until it catches up ...
*December 18, 2012 by Emily*

**physics**

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 29.4 . The acceleration period lasts for time 9.00 until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height reached by the rocket. ...
*May 25, 2011 by ahhhh!*

**physics**

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 6.00 until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height reached by the rocket. ...
*September 8, 2011 by Anonymous*

**Physics**

A bicyclist starts from rest and accelerates at a constant rate for 15.0s. After 10.0s the bicycles front wheel is turning at a rate of 2.5 rev/s. The tire wheel has a diameter of 0.8m. A)Through how many revolutions does the wheel turn in the first 10.0s? B)What is the linear...
*June 18, 2012 by courtney*

**physics**

A car sits in an entrance ramp to a freeway, waiting for a break in the traffic. The driver sees a small gap between a van and an 18-wheel truck and accelerates with constant acceleration along the ramp and onto the freeway. The car starts from rest, moves in a straight line, ...
*September 29, 2013 by Emma*

**Physics**

A car starts from rest and accelerates at a rate of 1 m/s^2 until it reaches a velocity of 7 m/s. It then travels at a constant velocity for the next 15 seconds. The driver then applies the brake, bringing the car to stop. The brakes provide an acceleration of -4 m/s^2. a) ...
*September 14, 2014 by Ulash*

**AP physics**

Lucy is using a programmable treadmill. She inputs a top speed into the treadmill and presses "start." The treadmill accelerates from rest at 0.100 m/s2 until it reaches that speed, after which it stays at that constant speed. Later, when she is getting tired, she hits the "...
*October 1, 2012 by Philip*

**Physics**

A speedboat starts from rest and accelerates at +2.07 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.523 m/s2. Following this, the boat accelerates at -1.55 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 5, 2010 by Emily*

**Physics**

A speedboat starts from rest and accelerates at +2.07 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.523 m/s2. Following this, the boat accelerates at -1.55 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 6, 2010 by Emily*

**Physics**

A speedboat starts from rest and accelerates at +1.94 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.58 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 6, 2010 by Bala*

**physics**

A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.44 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 8, 2010 by Andres*

**physics**

A speedboat starts from rest and accelerates at +1.99 m/s2 for 7.00 s. At the end of this time, the boat continues for an additional 6.00 s with an acceleration of +0.515 m/s2. Following this, the boat accelerates at -1.44 m/s2 for 8.00 s. What is the velocity of the boat at t...
*October 8, 2010 by Andres*

**physics**

1)Top-fuel drag racers are able to uniformly accelerate at 12.3 m/s2 from rest to 98 m/s before crossing the finish line. How much time elapses during the run? 2)A racecar accelerates from rest at +7.2 m/s2 for 4.1 seconds. How fast will it be going at the end of that time? 3)...
*January 4, 2008 by Amy*

**Physics**

A car starts from rest and accelerates at a constant rate of 1.1 m/s2. If the radius of the car wheels is 29 cm, and the final angular speed of the car wheel is 48 rad/s, how far does the car travel
*October 18, 2010 by Sufian Syed*

**PHYSICS**

A train starts from rest and accelerates uniformly, until it has traveled 3 km and acquired a velocity of 20 m/s The train then moves at a constant velocity of 20 for 400 s. The train then slows down uniformly at 0.065 m/s2 until it is brought to a halt. Calculate the total ...
*May 25, 2010 by CHLOE*

**Physics**

In a relay race, runner A is carrying a baton and has a speed of 3.0 m/s . When he is 25M behind the starting line, runner B starts from rest and accelerates at .10 m/s^2. How long afterwards will A catch up with B to pass the baton to B?
*February 2, 2014 by Jami*

**physics**

an object accelerates uniformly along a straight line from a velocity of 10ms-1 until 25ms-1 in 5s. a)the velocity of the object during the first 10s of motion b)the time taken to reach a final velocity 50ms-1
*March 23, 2012 by shiva*

**math(mechanics 1)**

a car traveling on a straight road accelerates uniformly at a meter per second square from its initial speed of 20 meter per second until it reaches a speed of 30 meter per second. the car travels at this speed for 600 meter and then decelerates uniformly at 0.5a meter per ...
*March 4, 2012 by maha*

**Physics**

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8m/s^2 . The acceleration period lasts for time 8.00s until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height y_max reached by ...
*June 1, 2010 by johnny*

**Physics**

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.8 m/s2 for 4.4 seconds. It then continues at a constant speed for 13.5 seconds, before getting tired and slowing down with constant ...
*August 27, 2012 by David*

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