# A ball is fired at a speed of 8m/s at 20° above the horizontal from the top of a 5m high wall. How far from the base of the wall will the ball hit the ground?

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A ball is fired at a speed of 8m/s at 20° above the horizontal from the top of a 5m high wall. How far from the base of the wall will the ball hit the ground?

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Step 1

Given information:

Initial velocity of the ball (u) = 8 m/s

Vertical component of the velocity (usinθ) = 2.73 m/s

Horizontal component of the velocity (ucosθ) = 7.51 m/s

Angle made by the velocity vector with the horizontal (θ) = 200

The height of the wall (h) = 5 m

Consider the upward direction as “+ve” and downward direction as “-ve”

Step 2

Now consider 2nd equation of motion,...

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