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CBSE Class 11-science Answered

when does static,kinetic,rolling friction act on a car during the various phases of its motion
Asked by commandodriller | 01 Sep, 2008, 10:13: PM
answered-by-expert Expert Answer

when the car tends to move on the road the friction occurs is called static friction.

kinetic friction comes into play when the car  is actually moving

when the car or a body is rolling on the surface of other body is rolling friction.

Answered by | 02 Sep, 2008, 01:40: PM

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CBSE 11-science - Physics
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CBSE 11-science - Physics
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Two blocks of mass m=5kg and M=10 kg are connected by a string passing over a pulley B as shown. Another string connects the centre of the pulley B to the floor and passes over another pulley A as shown. An upward force F is applied at the centre of pulley A. Both the pulleys are massless. Find the acceleration of both the blocks if 1) F=100N.  2)F=500N
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CBSE 11-science - Physics
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CBSE 11-science - Physics
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