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संबंधित प्रश्न
State Newton's third law of motion.
A body X of mass 5 kg is moving with velocity 20 m s-2 while another body Y of mass 20 kg is moving with velocity 5 m S-1. Compare the momentum of the two bodies.
Calculate the acceleration produced in a body of mass 50 g when acted upon by a force of 20 N.
The stone of hand flour grinder is provided with a handle near its rim. Give reason.
The moment of a force about axis depends ______.
A wheel of diameter 2 m is shown in the figure with the axle at O. A force F = 2 N is applied at B in the direction shown in the figure. Calculate the moment of force about
- the centre O, and
- the point A.
Classify the following amongst contact and non-contact forces.
magnetic force
A jack screw is provided with a long arm. Explain why?
Under what condition will a set of gears produce a gain in torque.
Write the expression for calculating the moment of force about a given point.
