question_answer

  Give one example of each of the following situations. (i) Uniformly accelerated motion. (ii) Motion with uniform retardation. (iii) Accelerated   motion  with  uniform magnitude of velocity. (iv)Motion in a direction with acceleration in perpendicular direction. (v) Motion in which v-t graph is a horizontal line parallel to x-axis.

Answer:

                  (i) Object dropped down from a height towards the surface of the earth. (ii) Object thrown up with a velocity, retards uniformly. (iii) Uniform circular motion, say planetary motion. (iv) A bullet fired horizontally from a rifle, has acceleration in downward direction (due to gravity). (v) A car moving with uniform velocity along a straight line.                                                 (1 x 5)