Question #6429188Single Choice
Physics
Question
A 0.4kg ball falls and strikes the ground at 25m/s. It rebounds at 20m/s. If the contact time is 0.05s, what is the magnitude of deceleration?
Options
A
100 m/s2
B
200 m/s2
C
500 m/s2
D
900 m/s2
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