a 40kg mass is initially at rest on a rough bench and a 10kg mass is attached to it. a frictional force of 20N opposes the motion of the 40kg mass. what is the speed of the 10kg mass 2s after the masses starts moving?
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12
Answer:
The speed will be 15 km/h.
Explanation:
This is because when force applied is 20N and object is 10 kg it will be 20 + 10 = 30.
30 ÷ 2 = 15.
So the answer is 15 km/h
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1
Answer:
Explanation:
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