Question

Q.18. A ball thrown horizontally strikes a wall 5 metres away.
The height of the point struck by the ball is 1 metre
lower than the height which it was thrown from. If y, is
the velocity, the ball was thrown with and a is the
angle with normal the ball reach the wall then (Take
g=10m/s)
(a) v = 5/5 m/s;a=tan(0.4)
(b) v = 2/5 m/s;a = tan" (2.5)
(e) v = 415 m/s;æ = tan- (0.2)
(d) v = 5V10m/s;a=tan(0.8)

full explanation​

Answer 1

Answer:

b is the correct answer........