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1) A body is moving along a horizontal circular path with constant speed v. What is the change in its velocity when it describes an angle?

{answer should come 2v sin}

2) Particle A of mass M is revolving along a circle of radius R. Particle B of mass m is revolving in another circle of radius r. If they take the same time to complete one revolution, then the ratio of their angular velocities is

{answer should come 1}

3) Two particles of masses M an m revolve in circular orbits of radii R and r. If the time periods of both the particles are equal, then the ratio of their linear speed is

{answer should come }

4) The angular velocity of a wheel increases from 600 revolutions/minute to 2400 revolutions/minute in 10 seconds. The number of revolutions made during this time interval is

{answer should come 250 revolutions}

5) A particle moves along a circle of radius 10 cm. If its linear speed changes from 4 m/s to

5 m/s in 1 second, then its angular acceleration will be

{answer should come 10}

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by jafiya

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