355568 A block of mass \(m\) sliding down an incline at constant speed is initially at a height \(h\) above the ground, as shown in the figure. The coefficient of kinetic friction between the mass and the incline is \(\mu\). If the mass continues to slide down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?

355569 Assertion :
A man who falls from a height on a cement floor receives more injury than when he falls from the same height on a heap of sand.
Reason :
The impulse applied by a cement floor is more than the impulse by sand floor.

355570 Assertion :
Total energy is negative for a bound system.
Reason :
Potential energy of a bound system is negative and more than kinetic energy.

355571 The potential energy of a particle in a force field is \(U=\dfrac{A}{r^{2}}-\dfrac{B}{r}\), where \(A\) and \(B\) are positive constants and \(r\) is the distance of particle from the centre of the field. For stable equilibrium, the distance of the particle is

355568 A block of mass \(m\) sliding down an incline at constant speed is initially at a height \(h\) above the ground, as shown in the figure. The coefficient of kinetic friction between the mass and the incline is \(\mu\). If the mass continues to slide down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?

355569 Assertion :
A man who falls from a height on a cement floor receives more injury than when he falls from the same height on a heap of sand.
Reason :
The impulse applied by a cement floor is more than the impulse by sand floor.

355570 Assertion :
Total energy is negative for a bound system.
Reason :
Potential energy of a bound system is negative and more than kinetic energy.

355571 The potential energy of a particle in a force field is \(U=\dfrac{A}{r^{2}}-\dfrac{B}{r}\), where \(A\) and \(B\) are positive constants and \(r\) is the distance of particle from the centre of the field. For stable equilibrium, the distance of the particle is

355568 A block of mass \(m\) sliding down an incline at constant speed is initially at a height \(h\) above the ground, as shown in the figure. The coefficient of kinetic friction between the mass and the incline is \(\mu\). If the mass continues to slide down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?

355569 Assertion :
A man who falls from a height on a cement floor receives more injury than when he falls from the same height on a heap of sand.
Reason :
The impulse applied by a cement floor is more than the impulse by sand floor.

355570 Assertion :
Total energy is negative for a bound system.
Reason :
Potential energy of a bound system is negative and more than kinetic energy.

355571 The potential energy of a particle in a force field is \(U=\dfrac{A}{r^{2}}-\dfrac{B}{r}\), where \(A\) and \(B\) are positive constants and \(r\) is the distance of particle from the centre of the field. For stable equilibrium, the distance of the particle is

355568 A block of mass \(m\) sliding down an incline at constant speed is initially at a height \(h\) above the ground, as shown in the figure. The coefficient of kinetic friction between the mass and the incline is \(\mu\). If the mass continues to slide down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?

355569 Assertion :
A man who falls from a height on a cement floor receives more injury than when he falls from the same height on a heap of sand.
Reason :
The impulse applied by a cement floor is more than the impulse by sand floor.

355570 Assertion :
Total energy is negative for a bound system.
Reason :
Potential energy of a bound system is negative and more than kinetic energy.

355571 The potential energy of a particle in a force field is \(U=\dfrac{A}{r^{2}}-\dfrac{B}{r}\), where \(A\) and \(B\) are positive constants and \(r\) is the distance of particle from the centre of the field. For stable equilibrium, the distance of the particle is