The variation of quantity A with quantity B is plotted in the fig. Describes the motion of a particle in a straight line.
(a) Quantity B may represent time.
(b) Quantity A is velocity if motion is uniform.
(c) Quantity A is displacement if motion is uniform
(d) Quantity A is velocity if motion is uniformly accelerated.

Options

A. Quantity B may represent time
B. Quantity A is velocity if motion is uniform
C. Quantity A is displacement if motion is uniform
D. Quantity A is velocity if motion is uniformly accelerated.

Answer

A, C, D

Explanation

When we are calculating velocit of a displacement time graph we have to take slope similary we have to take slope of velocity-time graph to calculate acceleration when slope is constant motion will be uniform. When we are representing motion by a graph it may be displacement time, velocity-time or acceleration-time hence, B may represent time for uniform motion velocity-time graph should be a straight line parallel to time axis. For uniform motion velocity is constant hence, slope will be positive. Hence quantity A is displacement
For uniformly accelerated motion slope will be positive and A represent velocity.