Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A car is travelling on road at 50 km/h. The driver applies brakes and brings the car to rest. Which frictional force does more work: (a) the force between the wheels and the brakes or
02
Oct
A car is travelling on road at 50 km/h. The driver applies brakes and brings the car to rest. Which frictional force does more work: (a) the force between the wheels and the brakes or A car is travelling on road at 50 km/h. The driver applies brakes and brings the car to rest. Which [...]
A man is running down an inclined plane. Is he doing work or is work being done on him? Why is it that under normal circumstances when we are running down an inclined plane we feel
02
Oct
A man is running down an inclined plane. Is he doing work or is work being done on him? Why is it that under normal circumstances when we are running down an inclined plane we feel A man is running down an inclined plane. Is he doing work or is work being done on him? [...]
When you walk on a surface, who does work on what ? If the surface has more friction, will more work be done? If the surface is frictionless and we try to walk, will any work be done?
02
Oct
When you walk on a surface, who does work on what ? If the surface has more friction, will more work be done? If the surface is frictionless and we try to walk, will any work be done? When you walk on a surface who does work on what ? If the surface has more [...]
When we apply a force on a wall of infinite mass but the wall remains at rest, have we done any work on the wall? Does the wall do work on us?
02
Oct
When we apply a force on a wall of infinite mass but the wall remains at rest, have we done any work on the wall? Does the wall do work on us? have we done any work on the wall? Does the wall do work on us? When we apply a force on a wall [...]
State the following statements as true or false. a. The work done by a force on a boy is equal to the dot product of the force and displacement of the body. b. Instantaneously, work is not defined.
02
Oct
State the following statements as true or false. a. The work done by a force on a boy is equal to the dot product of the force and displacement of the body. b. Instantaneously, work is not defined. State the following statements as true or false. a. The work done by a force on a [...]
Discuss whether any work is being done by each of the following agents and, if so, whether the work is positive or negative; (a) chicken scratching the ground, (b) a person studying,
02
Oct
Discuss whether any work is being done by each of the following agents and, if so, whether the work is positive or negative; (a) chicken scratching the ground, (b) a person studying, (b) a person studying Discuss whether any work is being done by each of the following agents and if so whether the work [...]
A block is moving on an inclined plane making an angle 45 with the horizontal and the coefficient of friction is mu. The force required to just push it up the inclined plane is three times
02
Oct
A block is moving on an inclined plane making an angle 45 with the horizontal and the coefficient of friction is mu. The force required to just push it up the inclined plane is three times A block is moving on an inclined plane making an angle 45 with the horizontal and the coefficient of [...]
A small block of mass of 0.1 kg lies on a fixed inclined plane PQ which makes an angle theta with the horizontal. A horizontal force of 1 N acts on the block through its center of mass as shown
02
Oct
A small block of mass of 0.1 kg lies on a fixed inclined plane PQ which makes an angle theta with the horizontal. A horizontal force of 1 N acts on the block through its center of mass as shown A small block of mass of 0.1 kg lies on a fixed inclined plane PQ [...]
The radius of earth is about 6400 km and that ofmars is 3200 km. The mass of the earth is 10 times the mass of mars. An object weight 200 N on the surface of earth. Its weight on the surface of mars will be.
02
Oct
The radius of earth is about 6400 km and that ofmars is 3200 km. The mass of the earth is 10 times the mass of mars. An object weight 200 N on the surface of earth. Its weight on the surface of mars will be. An artificial satellite is moving in a circular orbit around [...]
The orbital velocity of an artificial satellite in a circular orbit just above the earth’s surface is V 0 . The orbital velocity of a satellite orbiting at an altitude of half of the radius, is:
02
Oct
The orbital velocity of an artificial satellite in a circular orbit just above the earth’s surface is V 0 . The orbital velocity of a satellite orbiting at an altitude of half of the radius, is: is The orbital velocity of an artificial satellite in a circular orbit just above the earth's surface is V [...]