Question

VERTICAL MOTION 24. A body falls from 80m. Its time of descent is (g = 10 ms-2)
1)3s 2)4s 3)5s 4)6s​

Answer 1

s=(1/2)gt^2
So t^2=2s/g=16
So t=4 s option b

Answer 2

Answer:

s=(1/2)gt^2

So t^2=2s/g=16

So t= 4s

therefore, your answer is option b