Question
Asked Sep 13, 2019
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A player passes a basketball to another player who catches it at the same level from which it was thrown. The initial speed of the ball is 8.1 m/s , and it travels a distance of 4.2 m .

 

What was the initial direction of the ball?

What was its time of flight?

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Expert Answer

Step 1

Consider that the basketball is thrown with an angle θ from the horizontal axis. The initial speed of the ball has two components; one along the horizontal axis and one along the vertical axis. Hence, the components of speed are given by:

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и, — исos Ө usin0 Иу

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Step 2

The expression for the time of flight of the ball by Newton’s law of motion is:

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2u sin t = .1) g

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Step 3

The expression for the horizontal dis...

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D (ucos )t ..2)

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Science

Physics

Kinematics

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