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Suppose a goalkeeper can give the ball a speed of 28 m/s.What is the maximum horizontal distance the ball could go in meters?

Question

Suppose a goalkeeper can give the ball a speed of 28 m/s.

What is the maximum horizontal distance the ball could go in meters? 

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Step 1

The ball will travels in a projectile path. The maximum horizontal range of projectile motion is obtained at 45 degree with respect to horizontal. In case of projectile motion, acceleration of ball  is the gravitational acceleration only.

Horizontal distance covered by ball executing projectile motion is,

v*sin20
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v*sin20

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Step 2

Substituting the...

(28m/s) sin (2x 45")]
9.8m/s2
-80m
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(28m/s) sin (2x 45")] 9.8m/s2 -80m

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Physics

Kinematics

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