1) What units do the Coefficient of Static (µs) and Kinetic (µk) friction have? 2)If the...

1) What units do the Coefficient of Static (µ_s) and Kinetic (µ_k) friction have?

2)If the speed of an object changes at a constant rate, this is known as?

3)What is the difference between Weight and Mass?

PLEASE TYPE YOUR ANSWERS

Expert Solution

(1)

Coefficient of Static (µ_s) and Kinetic (µ_k) friction has no units

Coefficent of friction is ratio of frictional force and normal force acting to the surface. So, coefficient of friction has no units. ( Ratio of simlilar physical quantities )

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(2)

The rate of change of velocity is acceleration.

If the speed of an object changes at a constant rate, this is known as constant acceleration (or) uniform accleration.

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(3)

The quantity of matter is called mass of object. It is same at everywhere. It can be measure by using ordinary balance; whereas, the weight is a force acting due to gravity on that particular surface. It varies place to place as it directly varies with gravity. It can be measure with the help of spring balance.

genius_generous answered 2 years ago

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