Question

select the correct answer. in a video game, a ball moving at 0.6 meter/second collides with a wall. after the collision, the velocity of the ball changed to -0.4 meter/second. the collision takes 0.2 seconds to occur. whats the acceleration of the ball during the collision? use $a = \frac{v - u}{t}$. a. -1.0 m/s² b. 1.0 m/s² c. -5.0 m/s² d. 5.0 m/s² e. 0.24 m/s²

Explanation:

Step1: Identify values

Initial velocity $u = 0.6$ m/s, final velocity $v=- 0.4$ m/s, time $t = 0.2$ s.

Step2: Apply acceleration formula

$a=\frac{v - u}{t}=\frac{-0.4 - 0.6}{0.2}$.

Step3: Calculate the numerator

$-0.4-0.6=-1$.

Step4: Calculate the acceleration

$a=\frac{-1}{0.2}=- 5$ m/s².

Answer:

C. -5.0 m/s²