
A particle of mass is moving in the space under the influence a force , where is the velocity of particle and is constant vector, given as At , particle is at origin and moving with initial velocity . Choose the CORRECT statement(s).

Important Questions on Laws of Motion

Two skaters, and are skating towards each other. Skater, throws a ball towards, every such that it always leaves her hand with speed with respect to the ground. Consider two cases: (I) runs with speed towards while remains stationary. (II) runs with speed towards while remains stationary. Note That irrespective of speed of ball always leaves s hand with speed with respect to the ground. Ignore gravity. Balls will be received by


Three balls, and are released and all reach the point (shown in the figure). Balls and are released from two identical structures, one kept on the ground and the other at height from the ground as shown in the figure. They take time and respectively to reach (time starts after they leave the end of the horizontal portion of the structure). The ball is released from a point at height vertically above and reaches in time . Choose the correct statement.


The given graph shows the variation of velocity with position for a particle moving along a straight line
Which of the following graph shows the variation of acceleration with position

When a particle moves with variable velocity, which of the following statement are NOT correct ?
(i) Average speed = average velocity
(ii) Instantaneous speed = instantaneous velocity
(iii) Distance covered = magnitude of displacement








Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and


Which of the following statements are correct?




