Where is the energy of a vertically projected body maximum?
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0
|
2489
|
August 18, 2016
|
Two protons are brought closer. What is the effect on the potential energy of the system?
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0
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531
|
August 18, 2016
|
A light and a heavy body have equal momentum. Which one of them has more K.E.?
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0
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623
|
August 18, 2016
|
Name the parameter which is measure of the degree of elasticity of a body
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0
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1782
|
August 18, 2016
|
When is the exchange of energy maximum during an elastic collision?
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0
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3695
|
August 18, 2016
|
When an arrow is short, where from the arrow will acquire its K.E.?
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0
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394
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August 18, 2016
|
What is the source of the kinetic energy of the falling rain drops?
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0
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2082
|
August 18, 2016
|
State the principle of conservation of total mechanical energy
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0
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656
|
August 18, 2016
|
Give applications of kinetic energy of wind and a stream
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0
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902
|
August 18, 2016
|
Give expression for kinetic energy in vector notations wherever applicable
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0
|
542
|
August 18, 2016
|
Two inclined frictionless tracks, one gradual and the other steep meet at A from where two stones are allowed to slide down from rest, one on each track
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1
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6965
|
August 18, 2016
|
The sign of work done by a force on a body is important to understand
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1
|
726
|
August 18, 2016
|
Prove that instantaneous power is given by the dot product of force and velocity
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1
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9918
|
August 18, 2016
|
Give conditions for no work
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0
|
1558
|
August 18, 2016
|
A trolley of 300 kg carrying a sand bag of 25 kg is moving uniformly with a speed of 27 km/h on a frictionless track, after a while, sand starts leaking out of a hole on the trolleys floor at the rate of 0.05 kg${{s}^{-1}}$. What is the speed of the troll
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0
|
370
|
August 18, 2016
|
A body constrained to move along the Z-axis of a co-ordinate system is subjected to a constant force F = (-i + 2 j + 3 k) Newton
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1
|
3231
|
August 18, 2016
|
A body is moving uni-directionally under the influence of a source of constant power. Its displacement in time t is proportional to :
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1
|
2425
|
August 18, 2016
|
A body is initially at rest. It undergoes one dimensional motion with constant acceleration. The power delivered to it time t is proportional to:
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1
|
11263
|
August 18, 2016
|
Mountain roads rarely go straight up the slope, but wind up gradually, why?
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0
|
3103
|
August 18, 2016
|
A man can jump higher on moon than on earth with same effort Can a runner improve his timing for 100 m race on moon as compared to that on earth?
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0
|
1769
|
August 18, 2016
|
What is instantaneous power?
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0
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4962
|
August 18, 2016
|
What is the work done by earth's gravitational force in keeping the moon in its orbit in a complete revolution?
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0
|
2974
|
August 18, 2016
|
What should be the angle between the force and the displacement for maximum and minimum work?
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0
|
1455
|
August 18, 2016
|
In a tug of war, one team is slowly giving way to the other. What work is being done and by whom?
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0
|
1505
|
August 18, 2016
|
Does the work done in raising a load on to a platform depend upon how fast is it raised?
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0
|
1899
|
August 18, 2016
|
A spring is stretched. Is the work done by file stretching force positive or negative?
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0
|
1618
|
August 18, 2016
|
Define work done by a varying force
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0
|
831
|
August 18, 2016
|
Force on a body 1 exerted by body 2 is equal to that on body 2 by body 1. Is it necessary that work done on 1 by 2 is equal and opposite to work done on 2 by 1?
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0
|
528
|
August 18, 2016
|
What is the sign of work done by a frictional force?
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0
|
528
|
August 18, 2016
|
Convert 1 kWh in joule
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0
|
710
|
August 18, 2016
|