Question

A ball thrown vertically upwards returns to the thrower in 20 second. Calculate the

velocity with which it was thrown and the maximum height attained by the ball. Take
g = 10 m/s2
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Answer 1

Answer:

s = 1/2 × 10 × 20 × 20

s = 5 ×400

s = 2000m

v = 10 × 20

v = 200

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Answer 2

Answer:

u= 100mps

h= 500m