1.

A particle is found to be at rest when seen from a frame S_(1) and moving with a constant velocity when seen from another frame S_(2)(a) Both the frames are inertial(b) Both the frames are non inertial(c ) S_(1) is inertial and S_(2) is non inertial(d) S_(1) is non inertial and S_(2) is inertial

Answer»

a, B are TRUE
C, d are true
b, c are true
a, d are true

ANSWER :A


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