A car travelling at 45 mi/hr (20.1 m/s) comes to rest in 4 seconds. Find the acceleration of the car in m/s2.

Question

asked Jul 4, 2016 60.0k views

1 Answer

Maxwilms · Answer 1 · 2016-07-08T11:04:32+0000

Acceleration = (change in speed) / (time for the change)

Change in speed = (speed at the end) minus (speed at the beginning)

(0 - 20.1 m/s) = - 20.1 m/s

Time for the change = 4 sec

Acceleration = (-20.1 m/s) / (4 sec) = -5.025 m/s²

A car travelling at 45 mi/hr (20.1 m/s) comes to rest in 4 seconds. Find the acceleration of the car in m/s2.

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Please log in or register to add a comment.

No related questions found

Categories

Other Questions