NCERT Solution: Motion
Using following data, draw time-displacement graph for a moving object:
Use this graph to find average velocity for first 4 s, for next 4 s and for last 6 s.
Average velocity for first 4s.
(or as x remains the same from 4 to 8 seconds, velocity is zero)
Given initial velocity, u = 5 � 104 m/s
and acceleration, a = 104 m s�2
(i) final velocity = v = 2 u = 2 � 5 �10 4 m s�1
=10 � 104 m s�1
Using the equation of motion
Distance travelled in the interval between 4th and 5th second
Distance travelled in the interval between 4th and 5th second
(Assume upward acceleration
is -g and downward acceleration to be +g.
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