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Alenkinab [10]
3 years ago
6

A basketball referee tosses the ball straight up for the starting tip-off. At what velocity must a basketball player leave the g

round to rise 1.25 m above the floor in an attempt to get the ball? (Assume that the player gets the ball at his maximum height.)
Physics
1 answer:
maxonik [38]3 years ago
8 0

Answer:4.95 m/s

Explanation:

Given

Ball rises to a height of 1.25 m

Let u be the velocity of player while leaving ground .

Its final velocity will be zero as he reaches a height of 1.25 m

thus

u^2=2gh

u=\sqrt{2\times 9.81\times 1.25}

u=\sqrt{24.525}

u=4.952 m/s

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Danny Diver weighs 500 N and steps off a diving board 10 m above the water. Danny hits the water with kinetic energy of
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Answer:

Danny hits the water with kinetic energy of 5000 J.

Explanation:

Given that,

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F = 500 N

m*g= 500 N

He steps off a diving board 10 m above the water.

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when Danny diver hits water he generates the kinetic energy.

We need to find the kinetic energy of the water.

Let kinetic energy is K.

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now substituting the values in above equation

K= (500) * 10

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Hence,

he hits the water with kinetic energy of 5000 J.

Learn more about Kinetic energy here:

<u>brainly.com/question/15587458</u>

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