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1)A helicopter is hovering over a grassy field. A lead ball is dropped form the helicopter...

1)A helicopter is hovering over a grassy field. A lead ball is dropped form the helicopter and lands on the ground in 6.7second. (A) calculate the height of the helicopter (m) above the field (B) calculate the velocity (m/s) of the ball just before it hits the ground.

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Answer #1

As the helicopter is not moving upwards or downwards but taking round on a horizontal plane so the initial velocity of ball thrown downwards can be taken as zero and so we can solve the problem using two equations of motion

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