A girl walks along a straight path to drop a letter in the letterbox and comes back to her initial position. Her displacement-time graph is shown in Figure. Plot a velocity-time graph for the same.

Plot ,displacement-time graph when an object is moving with infinite velocity.Is such a motion of an object ever possible?

The displacement-time graph of a motion is shown in figure.The ratio of the speeds during the rfirst two seconds and the next four seconds is : .

Two stones are thrown up simultaneously from the edge of a cliff 200 m high with initial speeds of 15 m s^-1 and 30 m s^-1 . Verify that the graph shown in Fig. 3.27 correctly represents the time variation of the relative position of the second stone with respect to the first. Neglect air resistance and assume that the stones do not rebound after hitting the ground. Take g = 10 m s^-2 . Give the equations for the linear and curved parts of the plot.

The position-time graph of an object moving in a straight line is shown below. The object has zero velocity at point

A tall cylinder is filled with viscous oil. A round pebble is dropped from the top with zero initial velocity.From the plot shown in the figure. indicate the one that represents the velocity (v) of the pebble as a function of time (t).

A bar magnet M is dropped so that it falls vertically through the coil C. (Show in the figure). The graph obtained for voltage produced across the coil versus time is shown in the figure Why is the negative peak longer than the positive peak?

In the figure gives a speed-time graph of a particle in motion along a constant direction. Three equal intervals of time are shwon. In which interval is the average acceleration greatest in magnitude ? In which interval is the average speed greatest ? Choosing the positive direction as the constant direction of motion, give the signs of v and a in the three intervals. What are the acceleration at the points A,B,C and D?

The velocity-time graph of a body moving in a straight line is given below. The displacement of the body in 10 s is

Galileo's experminet showed that if the two objects of unequal masses are dropped from the sme height in vaccum,the times required by tehm are equal to reach the ground.But,if they are shown vertically upwards in vaccum with the same initial velocity what is the ratio of the times required to reach the ground?

The position-time(x-t) graphs for two children A and B returning from their school O to their homes P and Q respectively are shown in fig. Choose the correct entries in the bracets below: A and B reach home at the (same / different )time.