Question

A ball is thrown vertically upward with the velocity 10m\s from top of tower of height 100m

how long will it take to hits the ground
​

Answer 1

Answer:

Answer is 100m

Explanation:

We know that,

s=+ut+

2

1

at

2

s=+(10)(5)+

2

1

(10)(5)

2

s=+50+

2

1

×10×25

s=50+50m=100m

Answer 2

We know that,

s=+ut+1/2at²

s=+(10)(5)+1/2(10)(5)²

s=+50+1/2×10×25

s=50+50m=100m