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steposvetlana [31]
3 years ago
10

A ball of mass m is dropped from a height h above the ground. neglecting air resistance then determine the speed of the ball whe

n it is at a height y above the ground and determine the speed of the ball at y if at the instant of release it already has an initial upward speed vi at the initial altitude h.​
Physics
1 answer:
MrMuchimi3 years ago
8 0

Answer:

Explanation:

kinematic equation (g will have a negative value if we assume UP is positive)

v² = u² + 2as

a) v = √(0² + 2(g)(y - h))

b) v = √(vi² + 2(g)(y - h))

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Given :

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We know , Force equation on block is given by :

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