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sveta [45]
2 years ago
13

A football punter accelerates a football from rest to a speed of 15 m/s during the time in which his toe is in contact with the

ball (about 0.15 s). If the football has a mass of 0.44 kg, what average force does the punter exert on the ball?
Physics
1 answer:
ioda2 years ago
6 0

Answer:

Force, F = 44 N                

Explanation:

Given that,

Initial speed of the football, u = 0

Final speed, v = 15 m/s

The time of contact of the ball, t = 0.15 s

The mass of football, m = 0.44 kg

We need to find the average force exerted on the ball. It is given by the formula as :

F=ma\\\\F=\dfrac{mv}{t}\\\\F=\dfrac{0.44\times 15}{0.15}\\\\F=44\ N

So, the average force exerted on the ball is 44 N. Hence, this is the required solution.

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4 0
2 years ago
Which statement best explains how isotopes can have different masses and still be the same element?
ss7ja [257]

Your list of choices is a very short list, and doesn't include any
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2 years ago
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Answer

Given,

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Using Snell's law

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Angle of refraction is equal to 21°.

Now,

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3 years ago
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