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संबंधित प्रश्न
The energy of a body is its capacity to do .........
A car is running at a speed of 15 km h-1 while another similar car is moving at a speed of 45 km h-1. Find the ratio of their kinetic energies.
How much work is done when a force of 2 N moves a body through a distance of 10 cm in the direction of force?
A boy tries to push a truck parked on the roadside. The truck does not move at all. Another boy pushes a bicycle. The bicycle moves through a certain distance. In which case was the work done more : on the trick or on the bicycle? Give a reason to support your answer.
Explain the difference between a uniform linear motion and a uniform circular motion.
Is work done a scalar or a vector physical quantity?
A man carrying a suitcase in his hand is walking horizontally. What is the work done against gravity?
An electric motor of power 100 W is used to drive the stirrer in a water bath. If 50% of the energy supplied to the motor is spent in stirring the water. Calculate the work done on the water in one minute.
Look at the activity below. Reason out whether or not work is done in the light of your understanding of the term ‘work’.
Suma is swimming in a pond.
