what is the force that opposes the movement of two surfaces that are in contact and are sliding over each other? and it is not f
2 answers:
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Answer:b
Explanation:
Given
mass of heavy object is 4m
mass of lighter object is m
A person pushes each block with same force F
According to Work Energy theorem Change in kinetic energy of object is equal to Work done by all the object
As launching velocity is same for both the object so heavier mass must possess greater kinetic energy . For same force heavier mass must be pushed 4 times farther than the light block .
So the correct option is b
So first, we multiply mass by gravity by height, which is 60 * 9.8 * 74.8 = <span>43747.2
So the answer is: </span><span>43747.2
Hope this helped! c:</span>
So the answer is: </span><span>43747.2
Hope this helped! c:</span>