A cricket ball is dropped from a height of 20 m. Calculate : (I) speed of ball when it hits the ground (2)time it takes to fall through this height (g=10m/s2)
Asked by nisha_vini29 | 3rd Nov, 2018, 01:04: PM
When the ball is dropped from height h, speed v of the ball when it reaches ground is calculated using the equation, " v2 = 2×g×h "
hence speed v =
Time taken t to reach the ground is obtained using the equation " h = (1/2)×g×t2 "
hence time taken t to reach ground =
Answered by Thiyagarajan K | 4th Nov, 2018, 02:25: AM
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