#### My Profile

1. Inform you about time table of exam.

2. Inform you about new question papers.

3. New video tutorials information.

#### Question

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 Figure Choose the correct entries in the brackets below;

(a) (A/B) lives closer to the school than (B/A)

(b) (A/B) starts from the school earlier than (B/A)

(c) (A/B) walks faster than (B/A)

(d) A and B reach home at the (same/different) time

(e) (A/B) overtakes (B/A) on the road (once/twice).

#### Solution

#### Similar questions

A drunkard walking in a narrow lane takes 5 steps forward and 3 steps backward, followed again by 5 steps forward and 3 steps backward, and so on. Each step is 1 m long and requires 1 s. Plot the *x*-*t*graph of his motion. Determine graphically and otherwise how long the drunkard takes to fall in a pit 13 m away from the start.

Figure shows the *x-t *plot of one-dimensional motion of a particle. Is it correct to say from the graph that the particle moves in a straight line for *t *< 0 and on a parabolic path for *t *> 0? If not, suggest a suitable physical context for this graph.

State the number of significant figures in the following:

2.64 × 10^{24} kg

Read each statement below carefully and state with reasons and examples, if it is true or false;

A particle in one-dimensional motion with positive value of acceleration mustbe speeding up.

Look at the graphs (a) to (d) Figure carefully and state, with reasons, which of these *cannot *possibly represent one-dimensional motion of a particle.