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The upper half of an inclined plane with inclination  is perfectly smooth, while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom. If the coefficient of the friction for the lower half is given by

a)

2

b)

c)

d)



Question ID - 51044 | SaraNextGen Top Answer

The upper half of an inclined plane with inclination  is perfectly smooth, while the lower half is rough. A body starting from rest at the top will again come to rest at the bottom. If the coefficient of the friction for the lower half is given by

a)

2

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

According to work-energy theorem,

 work done by friction +work done by gravity=0

127 votes


127