Dhiren M Doshi Solutions for Chapter: Motion, Exercise 7: Higher Order Thinking Skills (HOTS) Questions

Is it possible to stop a fast-moving automobile instantaneously?

Can a body have zero velocity and still be accelerating? Give reasons.

Under what conditions is the resultant displacement of a body zero even when it travels a certain distance? Explain with an example.

A boy is moving along a circular path of radius $R$. What is the distance and displacement of the boy when he completes half a revolution?

Cite an example when a moving body having a certain speed has zero velocity.

The following table represents the distance of a car with time in a fixed direction.

Draw a distance-time graph and with its help find the distance travelled by car at the end of $2.5 \mathrm{s}$.

The following table represents the distance of a car with time in a fixed direction

Draw a distance-time graph and with its help, find the speed of the car at the end of $2.5 \mathrm{s}$.

Starting from rest, Leena paddles her bicycle to attain a velocity of $6 \mathrm{m}/\mathrm{s}$ in $30$ seconds. Then she applies brakes so that the velocity of the bicycle comes down to $4 \mathrm{m}/\mathrm{s}$ in the next $5$ seconds. Calculate the acceleration of the bicycle in both cases.