Question

A cricket ball is dropped from a height of 100 m.CALCULATE THE SPEED OF BALL WHEN IT HITS THE BALL AND THE TIME TAKEN.​

Answer 1

from this method you solve your problem

you write 100 and in this 20 is there

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thanks

Explanation:

thanks

Answer 2

Answer:

t = 4.47 s. and vf = 44.72 ms-¹

Explanation:

data:

H = 100 m

vi = 0 ms-¹

g = 10 ms-²

2gH = vf² - vi²

2(10)(100) = vf² - (0)²

2000 = vf²

√vf² = √2000

vf = 44.72 ms-¹

vf-vi = gt

44.72 - 0 = 10 t

10 t = 44.72

t = 44.72/10

t= 4.47 s