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A sphere is rolled on a rough horizontal surface. It gradually slows down and stops. The force of friction tries to |
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a) |
Decrease the linear velocity |
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b) |
Increase the angular velocity |
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c) |
Increase the linear momentum |
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d) |
Decreases the angular momentum |
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A sphere is rolled on a rough horizontal surface. It gradually slows down and stops. The force of friction tries to |
|
|
a) |
Decrease the linear velocity |
|
b) |
Increase the angular velocity |
|
c) |
Increase the linear momentum |
|
d) |
Decreases the angular momentum |
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(a,b) In rolling motion force of friction opposes translatory motion but helps in rotational motion. Thus, it wants to decrease the linear velocity but tends to increase the angular velocity |