Question

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. What’s the acceleration of the ball during the collision? Use . 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
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Answer 1

$a = \frac{ \delta \: distance}{ \delta \: t}$

$a = \frac{.6 - ( - .4)}{.2}$