Answer :
The horizontal velocity of the projectile it leaves the launcher is 0.283 m/s.
The horizontal speed of a projectile is regular, and there's a vertical acceleration because of gravity; its cost is 9.8 m/s/s, down, The vertical speed of a projectile changes via nine.8 m/s every second, The horizontal motion of a projectile is impartial to its vertical movement.
Projectile motion is a form of motion experienced with the aid of an object or particle that is projected in a gravitational field, such as from Earth's floor, and movements alongside a curved route below the action of gravity best.
Projectile motion is the movement of an object thrown (projected) into the air. After the initial force that launches the item, it most effectively reports the pressure of gravity. The object is known as a projectile, and its route is called its trajectory.
Calculation:-
Horizontal distance = 40 cm
= 0.4 m
height of table = 10 m
Let vertical velocity is 0.
S = ut +1/2 at²
10 = 0 + 0.5 × 10 t²
t² = 10/5
t = 1.414 sec.
At the same time, it will take to cover a horizontal distance of 0.4 m.
Velocity = distance/time
= 0.4/1,414
= 0.283 m/s
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