ICSE Class 9 Answered
A cricket ball of mass 0.1 kg moving at a speed of 30 ms^1 is brought to rest by a player in 0.03 second find the average forceapplied by the player
ANS IN DETAIL
the final answer is 720N
Asked by diksha.jadhav | 08 Sep, 2018, 09:46: PM
Expert Answer
First we need to calculate retardation of the ball using the formula " v = u - a×t ",
with final speed v = 0 and initial speed u = 30 m/s.
retardation a = u/t = 30/0.03 = 1000 m/s
force = mass×retardation = 0.1×1000 = 100 N
Answered by Thiyagarajan K | 09 Sep, 2018, 10:27: AM
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