Find the direction of the friction force for a moving bicycle. For class 9th
Anonymous:
For a moving bicycle , the direction of friction is the same as the direction of motion.
nope
Friction acts in forward dir'n on rear tyre and opp dir'n on front tyre
@TheRevanant.. you could write answer.
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The bicycle and the ground are in touch at the lowest points of the tyres. At the lowest point on the tyres, the tyre tries to push the ground backward. It is like we do when we walk or run.
So the ground pushes the tyre forward similar to pushing a person. This contact force is the force of friction.
Thus the friction acts in the direction of the velocity of the bicycle. In general friction acts in the same direction as a moving bicycle.
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The friction helps forward motion of a rolling wheel, but opposes a skidding wheel. Friction has a torque in the direction opposite to the angular momentum of the wheel. So the rolling wheel stops due to reduction in rotational speed of the wheel.
After reduction in rotational speed (turns/sec), it loses balance. When in motion the high rotational speed gives a balance to the bicycle.
So the ground pushes the tyre forward similar to pushing a person. This contact force is the force of friction.
Thus the friction acts in the direction of the velocity of the bicycle. In general friction acts in the same direction as a moving bicycle.
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The friction helps forward motion of a rolling wheel, but opposes a skidding wheel. Friction has a torque in the direction opposite to the angular momentum of the wheel. So the rolling wheel stops due to reduction in rotational speed of the wheel.
After reduction in rotational speed (turns/sec), it loses balance. When in motion the high rotational speed gives a balance to the bicycle.
:-)
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it is opposite in the direction of motion of bycycle
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