The variation of quantity A with quantity B, plotted in figure. Describes the motion of a particle in a straight line.

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 uniformaly accelerated

Answer

A, B, C

Explanation

Slope of displacement – time graph = velocity and slope of velocity - time graph = acceleration To represent motion by a graph it may be displacement-time, velocity-time or acceleration-time. So, that 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 will represent velocity.