|
Where is the energy of a vertically projected body maximum?
|
|
0
|
2569
|
August 18, 2016
|
|
Two protons are brought closer. What is the effect on the potential energy of the system?
|
|
0
|
605
|
August 18, 2016
|
|
A light and a heavy body have equal momentum. Which one of them has more K.E.?
|
|
0
|
684
|
August 18, 2016
|
|
Name the parameter which is measure of the degree of elasticity of a body
|
|
0
|
1853
|
August 18, 2016
|
|
When is the exchange of energy maximum during an elastic collision?
|
|
0
|
3757
|
August 18, 2016
|
|
When an arrow is short, where from the arrow will acquire its K.E.?
|
|
0
|
446
|
August 18, 2016
|
|
What is the source of the kinetic energy of the falling rain drops?
|
|
0
|
2141
|
August 18, 2016
|
|
State the principle of conservation of total mechanical energy
|
|
0
|
713
|
August 18, 2016
|
|
Give applications of kinetic energy of wind and a stream
|
|
0
|
957
|
August 18, 2016
|
|
Give expression for kinetic energy in vector notations wherever applicable
|
|
0
|
590
|
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
|
|
1
|
7124
|
August 18, 2016
|
|
The sign of work done by a force on a body is important to understand
|
|
1
|
858
|
August 18, 2016
|
|
Prove that instantaneous power is given by the dot product of force and velocity
|
|
1
|
10322
|
August 18, 2016
|
|
Give conditions for no work
|
|
0
|
1658
|
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
|
|
0
|
487
|
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
|
|
1
|
3421
|
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 :
|
|
1
|
2612
|
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:
|
|
1
|
11443
|
August 18, 2016
|
|
Mountain roads rarely go straight up the slope, but wind up gradually, why?
|
|
0
|
3187
|
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?
|
|
0
|
1847
|
August 18, 2016
|
|
What is instantaneous power?
|
|
0
|
5245
|
August 18, 2016
|
|
What is the work done by earth's gravitational force in keeping the moon in its orbit in a complete revolution?
|
|
0
|
3032
|
August 18, 2016
|
|
What should be the angle between the force and the displacement for maximum and minimum work?
|
|
0
|
1605
|
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?
|
|
0
|
1575
|
August 18, 2016
|
|
Does the work done in raising a load on to a platform depend upon how fast is it raised?
|
|
0
|
1942
|
August 18, 2016
|
|
A spring is stretched. Is the work done by file stretching force positive or negative?
|
|
0
|
1679
|
August 18, 2016
|
|
Define work done by a varying force
|
|
0
|
878
|
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?
|
|
0
|
591
|
August 18, 2016
|
|
What is the sign of work done by a frictional force?
|
|
0
|
578
|
August 18, 2016
|
|
Convert 1 kWh in joule
|
|
0
|
758
|
August 18, 2016
|