Question

a projectile is fired horizontally with velocity 98m/sec from the top of a 490m high find time taken to reach the ground​

Answer 1

sorry can't know the answer

Answer 2

Answer:

10 sec

Explanation:

y = vtsin∝ - gt²/2 , ∝ = 0

-490 = - 9.8t²/2

t² = 2×490/9.8 = 980/9.8 = 100

t = 10 sec