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Higher Study | Physics | Center of Mass and Linear Momentum

Which one of the following is a vector quantity?
From the above diagram, the component of velocity along the axis of normal just after the collision by perfectly elastic collision consideration will be
From the above diagram, the collision between two objects A and object B would be
For two-dimensional collision of two billiard balls it is necessary that center of the balls lie 
In two-dimensional collision of two moving tennis ball in X-Y plane, the linear momentum of the system will remain conserve in 
The coefficient of restitution for oblique collision is not unique
In oblique collision between two object is also known as :-
The collision between striker and a coin is an example of
The problem of collision in two dimension is more abstract because
In the collision between two bodies the total kinetic energy of both the bodies is not constant, the collision will be of
A cracker initially at rest explodes into two pieces of equal mass, then the pieces will move in
If there is some rise in temperature of two bodies collided directly to each other. Then the collision is
A balloon is inflated and released. Does it fly forward or backward as air escapes out of it?
The Law of conservation of momentum state that-
A particle of mass M is moving along a circular track of radius R with a uniform speed v. If the particle moves from one point to the diametrically opposite point, then-
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