According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.

Related MCQs

• The total momentum of a system of masses (i.e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called
• The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as
• If two bodies having masses m1 and m2 (m1 > m2) have equal kinetic energies, the momentum of body having mass m1 is
• The power developed by a body acted upon by a torque T newton metre (N - m) and revolving at ? radian / s is given by
• The principle of transmissibility of forces states that, when a force acts upon a body, its effect is
• A newton is defined as the force while acting upon a mass of one kg, produces an acceleration of 1 m/s2 in the direction of which it acts.
• A force acting in the opposite direction to the motion of the body is called force of friction.
• The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.
• The total energy possessed by a system of moving bodies
• D' Alembert's principle basically depends upon Newton's second law of motion.