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What sort of energy does flying bird possess?
When the velocity of the aero plane is doubled, the momentum :
A bullet fired from a gun can pierce a target due to its:
Kinetic energy with any reference must be :
Which one of the following is a greater work ?
At what angle the work done will be half of its maximum value:
A man pushes a wall 50 (N) and it displaces is zero (m) his work is:
A person walks 2 m with an acceleration of 5ms-2, holding an object of mass 2kg . The net work done on the object is :
If a mass of 5kg lifted upto 5m height, what will be the work done against the gravitational field:
If force and displacement of particle in direction of force are doubled, work would be:
The bodies of 1 kg and 4 kg have same kinetic energy. The ratio in their momenta will be :
If the momentum of a moving object is doubled, then its kinetic energy will be:
The momentum and kinetic energy of a ball is numerically equal. The numerical value of velocity is equal :
When the force and displacement are in the same direction,the kinetic energy of the body:
Potential energy per unit volume is given by :
Energy consumed by 60-watt bulb in 2 minutes is equal to:
100 J of work has been done by an agency in 10 second. What is power of agency?
The time taken by an engine 10 kW to lift a mass of 200 kg to the height of 40 m is :
The power of output of a lamp is 6W. How much energy the lamp give in 2 minutes ?
The power needed to lift a mass of 5000g to height of 1 m in 2 seconds:
The work energy principle is valid :
Work done on a body equals in its energy :
The consumption of energy by 60-watt bulb in 2 s is:
The consumption of energy by 60-watt bulb in 2 s is:
The gravitational potential energy per unit mass is called:
Work done will be zero if angle between Force and displacement is:
The rate at which work is being done is called:
Which of the following force is non-conservative force?
When the speed of your car is halved, by what factor does its kinetic energy decreases?
The relation between horsepower and watt is:
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