Question

A ball bounces changing velocity from vi=15m/s[D] to

vf=15m/s[U] in t=0.01s. The balls acceleration is
AO
B) 30m/s/s
C) 3000m/s/s
D) 0.3m/s/s
​

Answer 1

A) 0

Step-by-step explanation:

Given;

the ball's initial velocity, Vi = 15 m/s

the ball's final velocity, Vf = 15 m/s

time of motion of the ball, t = 0.01 s

Acceleration is the change in velocity with time. Measured in meter per second square (m/s²).

The acceleration of the ball is calculated as follows;

`a = (dv)/(dt) = (V_f - V_i)/(t) = (15 \ m/s \ \ - \ \ 15 \ m/s)/(0.01 \ s) \ = \ (0)/(0.01 \ s) \ = \ 0`

Therefore, the acceleration of the ball is 0.