Velocity of one body with respect to another body is called:

Assertion: A body,whatever its motion, is always at rest in a frame of reference which is fixed to the body itself. Reason: The relative velocity of a body with respect to itself is zero.

Velocity of a body is variable when

In arthropods the body cavity is called

Body cavity of arthropods is called

Cell body of neuron is called

A body is moving with uniform velocity of 8 ms^-1 . When the body just crossed another body, the second one starts and moves with uniform acceleration of 4 ms^-2 . The time after which two bodies meet will be :

A body is moving with uniform velocity of 8 ms^-1 . When the body just crossed another body, the second one starts and moves with uniform acceleration of 4 ms^-2 . The time after which two bodies meet will be :

A body (solid sphere) of mass m makes an elastic collision with another idential body at rest. Just after collision the angle between the velocity vector of one body with the initial line of motion is 15^(@) then the angle between velocity vector of the other body with the initial line of motion is

The vector difference between the absolute velocities of two bodies is called their relative velocity. The concept of relative velocity enables us to treat one body as being at rest while the other is in motion with the relative velocity. This jormalism greatly simplifies many problems. If vecv_(A) is the absolute velocity of a body A and vec_(B) that of another body B then the relative velocity of A in relation to B is vec_(AD)=vecV_(A)-vecv_(B) and vecv_(BA)=vecv_(B) - vecv_(A) . The principle follows here is that the relative velocity of two bodies remains unchaged if the same additional velocity is imparted to both the bodies. A simple way of carrying out this operation is to be represent the velocities in magnitude and direction from a common point. Then the line joining the tips of the vectors represents the relative velocity Q A train A moves to the east with velocity of 40 km/hr and a train B moves due north with velocity of 30 km/hr. The relative velocity of A w.rt. B is

A body is thrown with a velocity equal to n times the escape velocity (v_(e)) . Velocity of the body at large distance away will be :-