A student throws a ball horizontally at the rate of 40 m/s. If the height from which the ball is thrown is 2 m, how far will the ball travel before it touches the ground? 16.33 m 16.33 m 25.56 m 25.56 m 28.29 m 28.29 m 19.54 m

25.56 m

Explanation:

For vertical movement , initial velocity u = 0

Displacement  h = 2 m

time taken = t

h = ut + 1/2 gt²

2 = .5 x 9.8 x t²

t² = .4081

t = .639 s

During this period , the ball will move in horizontal direction uniformly with velocity 40 m /s .

horizontal displacement = horizontal velocity x time

= 40 x .639 = 25.56 m

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

3.2x10^7