a man throwing balls with same speed vertically upwards one after the other at an interval of 2seconds.what should be the speed of throw so that more than two balls are in sky at any time.(given g =9.8m/s)
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more than 19.6 m/s
Let the required speed of through be u m/s. The time taken to reach maximum height t=u/g ; For two balls to remain in air at any time, t must be greater than 2. ; ∴ u/g >2 ⇒ u > 2(g) ; u > 19.6 m/s
Let the required speed of through be u m/s. The time taken to reach maximum height t=u/g ; For two balls to remain in air at any time, t must be greater than 2. ; ∴ u/g >2 ⇒ u > 2(g) ; u > 19.6 m/s
kaushikmaddala:
Thanks
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