Internal forces can change...

Internal forces can change

The kinetic energy but not linear momentum of the system

Neither linear momentum nor kinetic energy of the system

Both kinetic energy and linear momentum of the system

The linear momentum but not the kinetic energy of system

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Internal forces acting within a system of particles can alter

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Which of the following forces can cause a change in the potential energy?

S_(1): If the internal forces within a system are conservative, then the work done by the external forces on the system is equal to the change in mechanical energy of the system. S_(2): The potential energy of a particle moving along x- axis in a conservative force field is U=2x^(2)-5x+1 is S.I. units. No other forces are acting on it. It has a stable equalibrium position at one point on x- axis. S_(3) : Internal forces can perform net work on a rigid body. S_(4) : Internal forces can perform net work on a non - rigid body.

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The work done by the external forces on a system equals the change in

To determine the motion of the centre of mass of a system, knowledge of internal forces of the system is required. For this purpose we need not to know the external forces on the system.

AAKASH INSTITUTE ENGLISH-TEST 2-Exercise

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Which of the following waves has the longest wavelength?
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Electromagnetic wave cannot be produced by
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