contestada

Of the following, which change in motion took the greatest amount of time?
es )
A)
A ball falling at 73 m/s and hitting the ground at 9.8 m/s?
B)
An object speeding up from 64 m/s to 129 m/s at an acceleration of 9.8
m/s2
A horse slowing from a 90 m/s velocity to a 38 m/s velocity at an
acceleration of 8.2 m/s2
A car slowing down at an acceleration of 5.6 m/s from a speed of 45 m/s
to a speed of 9 m/s.
D

Respuesta :

Answer:

A. A ball falling at 73 m/s and hitting the ground at 9.8 m/s

Explanation:

The equation for accleration is a= â–˛v/â–˛t With a final velocity of 0 m/s minus the initial 73 m/s, at an acceleration of 9.8 m/s^2, the ball would take 7.45 seconds to hit the ground.