A rifleis aimed horizontally to wards the center of target 100m away. If the buller strikes 10 cm below the center

So, horizontal Velocity is 699.30 m/s

Explanation:

First, we need to determine the time as follow

y = ( U x t ) + 1/2 x ( g x )

Where

y = Vertical distance = 10 cm / 1000 = 0.1 m

u = vertical velocity = 0

g = gravity = 9.8

Placing values in the formula

0.1 = ( 0 x t ) + 1/2 x ( 9.8 x )

0.1 = 0 + 4.9

0.1 = 4.9

=

t = 0.143 seconds

Use the following formula to calculate the horizontal velocity

V = x / t

Where

x = Distance = 100 m

t = time = 0.143 seconds

V = 100m / 0.143 seconds

V = 699.30 m/s

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