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Alex17521 [72]
3 years ago
7

The time a basketball player spends in the air when shooting a basket is called the​ "hang time." the vertical leap l measured i

n feet is related to the hang time t measured in seconds by the equation lequals=4t2. suppose that a basketball player has a vertical leap of 4 feet 4 inches. find the hang time for this leap.
Physics
1 answer:
Norma-Jean [14]3 years ago
3 0

I believe that L is in feet while t is in seconds. To find for the hang time, all we have to do is to plug in the value of L in feet in the equation.

4 inches is equivalent to 4/12 feet or 0.33 feet, therefore the total L is:

L = 4.33 ft

Using the equation to find for t:

L = 4 t^2

4.33 = 4 t^2

<span>t = 1.04 s</span>

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Answer:

v_o = 4.54 m/s  

Explanation:

<u>Knowns  </u>

From equation, the work done on an object by a constant force F is given by:  

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We know that the kinetic friction force is given by:

f_k=μ_k*N

And we can get the normal force N by applying Newton's second law to the sled along the vertical direction, where there is no acceleration along this direction, so we get:  

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f_k = μ_k*N  

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Since the kinetic friction force is the only force acting on the sled, so the net work on the sled is that of the kinetic friction force  

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v_o = √2 x (0.020) x (9.8 m/s^2) x (11.0 m) = 4.54 m/s  

v_o = 4.54 m/s  

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