Question

An object is thrown horizontally with a velocity of 10m/s from the top of a 20 m high building. Where does the object strike the ground?

Answer 1

Answer: 20 m

Explanation: refer attached file

Answer 2

Solution:

20m

Explanation:

we have , height = 20m

put g = 10

initial velocity ,u = 10 m/s

for horizontal range , the formula is -

R = u √2H/g

= 10 √ 2×20/10

= 10 √ 4

= 10 × 2

= 20 m

Hence , the object strikes 20 m away from the ground in horizontal direction.