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Assoli18 [71]
3 years ago
14

Explain why you cannot use mass or volume alone to identify substances.

Physics
1 answer:
Alex17521 [72]3 years ago
4 0
Objects can have the same mass (but different <span>compositions). Only mass or volume cannot tell you if the object is solid or vo</span>lumes) or same volume (but different masses) 

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A 60 kg object is being pushed at a rate of 5 m/s^2 and is subject to 150 N of friction. What is the magnitude of the applied?
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A 60 kg object is being pushed at a rate of 5 m/s^2 and is subject to 150 N of friction, then the magnitude of the applied force is 450 N

<h3>What is friction?</h3>

Friction is a type of force that resists or prevents the relative motion of two physical objects when their surfaces come in contact.

The friction force prevents any two surfaces of objects from easily sliding over each other or slipping across one another. It depends upon the force applied to the object.

As given in the problem, a 60 kg object is being pushed at a rate of 5 m/s^2 and is subject to 150 N of friction

By using Newton's Second law of motion

F =ma

F =60*5

F = 300 N

But there the friction force of 150 N is involved along with the force responsible for the motion

Applied force = (300 + 150 )N

                       =450 N

Thus, If a 60 kg object is being pushed at a speed of 5 m/s2 and experiencing friction of 150 N, the force that is being applied is 450 N.

Learn more about friction from here

brainly.com/question/24186853

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