# General Physics 1

1) A car moving with an initial velocity of 29.6 m/s decreases to a velocity of 17.9 m/s over a time
interval of 4.08 seconds.
(a.) What is the average acceleration of the car during this time?
(b.) Assuming the acceleration is constant, how far did the car travel during this time?

1. 👍 0
2. 👎 0
3. 👁 177
1. change in velocity/ change in time = (17.9-29.6) / 4.08
= -2.67 m/s^2

d = Vi t - (1/2) 2.67 * t^2
= 29.6(4.08) - 1.33 (4.08^2)

= 121 - 22.1
= 98.9 m

1. 👍 0
2. 👎 0
posted by Damon

## Similar Questions

1. ### physics 4a

A bumper car with mass m1 = 106 kg is moving to the right with a velocity of v1 = 4.4 m/s. A second bumper car with mass m2 = 96 kg is moving to the left with a velocity of v2 = -3 m/s. The two cars have an elastic collision.

asked by Lis on November 4, 2018
2. ### physics

A car is moving with constant velocity. Which of the following is true? a) the car travels the same distance in each second b) car's velocity increases by the same amount in each second c)car's velocity decreases by the same

asked by Tammy on October 15, 2007
3. ### physics

A car is moving with constant acceleration. Which of the following is true? a) the car travels the same distance in each second b) car's velocity increases by the same amount in each second c)car's velocity decreases by the same

asked by Tammy on October 15, 2007

a railroad handcar is moving along striaght, fricionless tracks. In each of the following cases the car initially has a total mass (car and contents of magniude 4.00 m/s^1. Find the final velocity of the car in each of the three

asked by taylor on April 3, 2012
5. ### Calculus1

A car braked with constant deceleration of 16 ft/sec^2 takes 200 ft to come to a complete stop. How fast was the car traveling when the breaks were first applied? A) if the brakes were first applied when t = 0 at position s(0) =

asked by ACDub on April 9, 2014
1. ### Urgent physics help

1. A runner starts at rest and accelerates uniformly at a rate of 0.85 m/s2 . What is the runner’s velocity after the runner has traveled 6.0 m? A. 2.3 m/s B. 3.2 m/s C. 5.1 m/s D. 10.2 m/s 2. An official drag race in the United

asked by Anonymous on October 19, 2015
2. ### Physics

A 2.0 kg lab car moving to the right with an initial velocity of 3.0 m/s collides with a 1.0 kg lab car moving to the left with a velocity of 8.0 m/s in a inelastic collision. What us the final velocity? Take left to be negative.

asked by mssailormouth on June 24, 2019
3. ### physics

A bumper car with mass m1 = 100 kg is moving to the right with a velocity of v1 = 4.6 m/s. A second bumper car with mass m2 = 86 kg is moving to the left with a velocity of v2 = -3.8 m/s. The two cars have an elastic collision.

asked by stewart on October 14, 2014
4. ### Physics

A train car with mass m1 = 591 kg is moving to the right with a speed of v1 = 7.3 m/s and collides with a second train car. The two cars latch together during the collision and then move off to the right at vf = 4.7 m/s. a. What