Lakhmir Singh and Manjit Kaur Solutions for Chapter: Motion, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)

A body is moving along a circular path of radius $R$. What will be the distance travelled and displacement of the body when it completes half a revolution?

If on a round trip you travel $6 \mathrm{km}$ and then arrived back home. What distance have you travelled?

If on a round trip you travel $6 \mathrm{km}$ and then arrive back home. What is your final displacement?

A body travels a distance of $3 \mathrm{km}$ towards East, then $4 \mathrm{km}$ towards North and finally $9 \mathrm{km}$ towards East. What is the total distance travelled?

A body travels $3 \mathrm{km}$ towards East, then $4 \mathrm{km}$ towards North and finally $9 \mathrm{km}$ towards East. What is the resultant displacement?

A boy walks from his classroom to the bookshop along a straight corridor towards North. He covers a distance of $20 \mathrm{m}$ in $25$ seconds to reach the bookshop. After buying a book, he travels the same distance in the same time to reach back to the classroom. Find:

$1.$ Average speed

$2.$ Average velocity, of the boy.

A car travels $100 \mathrm{km}$ at a speed of $60 \mathrm{km}/\mathrm{h}$ and returns with a speed of $40 \mathrm{km}/\mathrm{h}$. Calculate the average speed for the whole journey.

A ball hits a wall horizontally at $6.0 \mathrm{m}{\mathrm{s}}^{-1}$. It rebounds horizontally at $4.4 \mathrm{m}{\mathrm{s}}^{-1}$. The ball is in contact with the wall for $0.040 \mathrm{s}$. What is the acceleration of the ball?