Question

A stone is dropped from a height of 500m

(i) How long it will take to reach the ground?

(ii) What will be its speed when it hits the ground? (take g = 10 m/s2)

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Answer 1

Explanation:

s= 500

g = 10

u = 0m/s

t=?(to be calculated)

s=ut+1/2a×t×t

500= 0×t+1/2×10×t×t

500=5×t×t

100=t×t

t=10seconds

now to calculate v

a=v-u/t

10=v-0/10

v=100m/s

Answer 2

Answer:

again thanks for free points