Exercise

When a car takes a sudden left turn in the curved road, passengers are pushed towards the right due to

Three forces acting on a body are shown in the figure. To have a resultant force only along the $Y-\mathrm{axis}$, the magnitude of the minimum additional force needed is:

Statement $\mathrm{I}$ : A cloth covers a table. Some dishes are kept on it. The cloth can be pulled out without dislodging the dishes from the table

Statement $\mathrm{II}$ : For every action there is an equal and opposite reaction.

A body of mass $2 \mathrm{kg}$ moving on horizontal surface with an initial velocity of $4 \mathrm{m}/\mathrm{s}$ comes to rest after $2 \mathrm{s}$. If one wants to keep this, body moving on the same surface with a velocity $4 \mathrm{m}/\mathrm{s}$, the force required is

Two masses of $10 \mathrm{kg}$ and $5 \mathrm{kg}$ are suspended from a rigid support as shown in the figure. The system is pulled down with a force of $150 \mathrm{N}$ attached to the lower mass. The string attached to the support breaks and the system accelerates downwards.


In case the force continues to act,  the tension acting between the two masses is

A book is at rest on the table which exerts a normal force on the book. If this force is considered as reaction force, what is the action force according to Newton’s third law?

A block of mass $1 \mathrm{kg}$ lies on a horizontal surface in a truck. The coefficient of static friction between the block and the surface is $0.6$. If the acceleration of the truck is $5\mathrm{m}{\mathrm{s}}^{-2}$, find the frictional force acting on the block.

A monkey of mass $20\mathrm{kg}$ is holding a vertical rope. The rope will not break when a mass of $25\mathrm{kg}$ is suspended from it but will break if the mass exceeds $25\mathrm{kg}$. What is the maximum acceleration with which the monkey can climb up along the rope ? $\left(g=10\mathrm{m}/{\mathrm{s}}^2\right)$