Question

A projem from the ground ng m. The initial velocity
Choose the correct ul
piectile is fired horizontally from a height of
19.62 cm from the ground and reaches the ground
at 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
A particle is projected at an angle of elevation
-
sin'
and it's range on the horizontal plane is
3 km. The initial velocity of projection is
(1) 160 m/s
(2) 175 m/s
(3) 180 m/s
(4) 230 m/s​

Answer 1

Explanation:

4)30.49

3)180 m/s

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