1 year ago

1. What are the two factors affecting friction

1 answer:

5 0

Answer: a.) Roughness of the surfaces in contact with each other .
Higher the roughness of surfaces in contact with each other, greater is the friction between bodies. Force of friction will be less between smooth surfaces.

b.) Weight of the sliding/rolling body: greater the weight of the moving body on the surface, more is the force of friction on the body by the surface.

I hope this helps

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irakobra [83]

Answer:

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Explanation:

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3 years ago

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REY [17]

Answer:

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Explanation:

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3 years ago

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Aneli [31]

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3 years ago

A spring has a spring constant of 20 N/m. How much potential energy is stored in the spring as it stretched 0.20 m

makkiz [27]

The elastic potential energy (Ep) is given by $Ep = \frac{1}{2}*k*x^2$

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Solving:
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$Ep = \frac{1}{2}*20*0.20^2$
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$Ep = \frac{0.8}{2}$
$\boxed{\boxed{Ep = 0.4\:J}}\end{array}}\qquad\quad\checkmark$

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