a balloon is moving up with an acceleration a=4 m/sec2. a coin is dropped from the balloon 5 sec after the start balloon.find
1) the initial velocity of the dropped coin
2)the height attained by the lift till time of drop
3)the time after the drop when the coin reaches the ground.
calculate velocity, height of balloon at t=5 using equation of motion, the initial speed of the coin will be the same as the balloon at t = 5s.
Similarly taking initial velocity as stated above, calculate the time using S= ut+ 1/2at^2
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