A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?

Anonymous User Physics Work Power and Energy 21 Mar, 2020 1 Answer 55 views









A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m which applying the force and the ball goes upto 2 m height further, find the magnitude of the force. Consider g = 10 m/s2

Anonymous User Physics Laws of Motion and Friction 21 Mar, 2020 1 Answer 53 views

A block rests on a rough inclined plane making an angle of 30° with the horizontal. The coefficient of static friction between the block and the plane is 0.8. If the frictional force on the block is 10 N, the mass of the block (in kg) is

Anonymous User Physics Laws of Motion and Friction 21 Mar, 2020 1 Answer 55 views


A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5 m/s2, the reading of the spring balance will be

Anonymous User Physics Laws of Motion and Friction 21 Mar, 2020 1 Answer 52 views




One end of a massless rope, which passes over P a massless and frictionless pulley P is C tied to a hook C while the other end is free.
Maximum tension that the rope can bear is 960 N. With what value of maximum safe acceleration (in ms–2) can a man of 60 kg climb on the rope?

 One end of a massless rope, which passes over P a massless and frictionless pulley P is C tied to a hook C while the other end is free. Maximum tension that the rope can bear is 960 N. With what value of maximum safe acceleration (in ms–2) can a man of 60 kg climb on the rope?

 

Anonymous User Physics Laws of Motion and Friction 21 Mar, 2020 1 Answer 56 views

When forces F1, F2, F3 are acting on a particle of mass m such that F2 and F3 are mutually perpendicular, then the particle remains stationary. If the force F1 is now removed then the acceleration of the particle is

Anonymous User Physics Laws of Motion and Friction 21 Mar, 2020 1 Answer 54 views

When forces F1, F2, F3 are acting on a particle of mass m such that F2 and F3 are mutually perpendicular, then the particle remains stationary. If the force F1 is now removed then the acceleration of the particle is

Anonymous User Physics Laws of Motion and Friction 21 Mar, 2020 1 Answer 57 views