The displacement-time graph for two particles $A$ and $B$ are straight lines inclined at angles of ${30^o}$ and ${60^o}$ with the time axis. The ratio of velocities of ${V_A}:{V_B}$ is

The distance travelled by an object in time $t$ is given by $s =(2 \cdot 5) t ^2$. The instantaneous speed of the object at $t =5\,s$ will be $….\,ms ^{-1}$

A particle starts from the origin at time $t = 0$ and moves along the positive $x-$ axis. The graph of velocity with respect to time is shown in figure. What is the position of the particle at time $t = 5\,s$ ?………$m$

The speed verses time graph for a particle is shown in the figure. The distance travelled (in $m$ ) by the particle during the time interval $t=0$ to $t=5\, s$ will be

The variation of velocity of particle with time moving along a straight line is illustrated in the following figure. The distance travelled by the particle in four seconds is…….$m$