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संबंधित प्रश्न
When do we say that work is done?
In each of the following a force, F is acting on an object of mass, m. The direction of displacement is from west to east, as shown by the longer arrow. Observe the diagrams carefully and state whether the work done by the force is negative, positive or zero.
A force acts on a body and displaces it by a distance S in a direction at an angle θ with the direction of the force. What should be the value of θ to get the maximum positive work?
The energy of a body is its capacity to do .........
Express joule in terms of erg.
A boy weighing 25 kgf climbs up from the first floor at height 3 m above the ground to the third floor at height 9m above the ground. What will be the increase in his gravitational potential energy? (Take g = 10 N kg -1)
A person of mass 50 kg climbs a tower of height 72 metres. Calculate the work done. (g = 9.8 m s−2).
How much work is done by the gravitational force of earth acting on a satellite moving around it in a circular path? Give reason for your answer.
Determine the amount of work done when an object is displaced at an angle of 30° with respect to the direction of the applied force.
What is the difference between renewable and non-renewable resources?
