Questions
A particle of mass m slides from rest from position A, along a smooth circular track of radius R as shown in fig. (7a). The vertical distance travelled by m before leaving the surface of the track is
detailed solution
Correct option is A
The speed y acquired by the particle after falling through a distance h (from A to B) is given by12mv2=mghThe contributed force needed at this instant ismv2R=mâ 2ghRor v=2ghNow mgcosâ¡Î¸=mv2R¯or Râh=2hâ´ h=R/3Talk to our academic expert!
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A vehicle is moving with uniform speed along horizontal, concave and convex surface roads. The surface on which, the normal reaction on the vehicle is maximum is
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