3 years ago

If an object with a mass of 30 kg accelerates at a rate of 2 m/s^2, what is the

Physics

1 answer:

Zolol [24]3 years ago

8 0

Hello, for this use the second law of Newton:

F = ma

We have the data:

F = ?

m = 30 kg

a = 2 m/s^2

Replacing:

F = 30 kg * 2 m/s^2

F = 60 N

Result:

The force is of 60 Newtons.

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g A bowling ball with a mass of 3.86 kg and a radius of 0.161 m starts from rest at a height of 2.5 m and rolls down a 48.4 o sl

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Answer:

$v=1.5m/s$

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The gravitational potential energy gets transformed into translational and rotational kinetic energy, so we can write $mgh=\frac{mv^2}{2}+\frac{I\omega^2}{2}$ . Since $v=r\omega$ (the ball rolls without slipping) and for a solid sphere $I=\frac{2mr^2}{5}$ , we have:

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