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 |
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a) |
2 |
b) |
c) |
d) |
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) |
(c) According to work-energy theorem, work done by friction +work done by gravity=0 |