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CBSE Class 9 Answered

Find kinetic energy of a ball of mass 200 g moving at a speed of 20m/s?
Asked by Vikas | 03 Nov, 2018, 01:31: PM
answered-by-expert Expert Answer
Kinetic energy = (1/2)×m×v2 = (1/2)×0.2×20×20 =40 J
 
m is mass of ball and v is speed of ball
Answered by Thiyagarajan K | 03 Nov, 2018, 10:04: PM
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