Question

A boy throws a stone upward with a velocity of 60m/s.
(a) How long will it take to reach the maximum height (g = -10m/s2)?
(b) What is the maximum height reached by the ball?
(c) How long will it take to reach the ground?

Answer 1

Answer:

(A) time taken = 6 sec

(b) maximum height reached = 180m

(c) time taken to reach the ground = (6+6) = 12 sec

Explanation:

(a) formula used -- v = u+at

(b) formula used -- v^2 -u^2 = 2as