If a wheel of radius r turns through an angle of 30° then the distance through which any point on its rim moves is ??
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The minimum number of communication satellites required to cover the whole earth is ??
In an angular motion, Newton’s second law of motion is ??
A body of 2 kg is suspended from the ceiling of an elevator moving up with an acceleration g. Its apparent weight in the elevator will be ??
The angular speed of seconds hand of a watch in rads-1 is ??
If a body of mass 10 kg is allowed to fall freely, its weight becomes ??
The shaft of a motor rotates at a constant angular speed of 360rev/min. Angle turned through in 1 sec in radian is ??
How many days would be in a year if the distance between the earth and the sun were reduced to half of its present value (assuming circular orbit) ??
What is the outward force acting on a mass of 10 kg when rotating at one end an inelastic string 10m long at speed of 1m/s ??
When a body is moving along a circular path it covers a certain angle in a given interval of time. Such type of motion is ??
If we whirl a stone at the end of a string in the vertical circle, it is likely to break when the stone is ??