Question

1.
A projectile is fired horizontally from a height of
19.62 cm from the ground and reaches the ground
át a horizontal distance of 49 m. The initial velocity
is approximately
(1) 20.1 m/s
(2) 24.52 m/s
(3) 28.32 m/s
(4) 30.49 m/s​

Answer 1

Explanation:

using the formula

x=u√2H/g

here x= horizontal range

u=initial velocity

H=height from which particle is thrown