Laws of Motion

Two blocks of mass 10 kg and 5 kg are connected with a light string which passing over an ideal pulley attached with a fixed smooth wedge. If the system is released from rest, then the acceleration of the blocks will be

A block rests on an inclined plane making an angle of 30° with the horizontal. The coefficient of static friction between block and the plane is 0.8. If the frictional force on the block is 10 N, then mass of block (in kg) (Take g = 10 m/s² )

Bullets of 0.03 kg mass each hit a plate at a rate of 200 bullets per second with velocity of 50 m/s and reflect back with velocity of 30 m/s. The average force acting on the plate in newton is

The root mean square speed of molecules of a gas is 1260 m/s. The average speed of the gas molecules is

Find the acceleration of 2 kg block shown in the diagram. (neglect friction)

In the system shown below, the pulley 4 string are ideal. If the acceleration of blocks is $\frac{g}{8}$ <!-- [if gte mso 9]><xml> </xml><![endif]-->, find $\frac{m_1}{m_2}$  <!-- [if gte mso 9]><xml> </xml><![endif]-->

For the block shown, F₁ is the minimum force required to move block upwards and F₂ is the minimum force required to prevent it from slipping, find $\left|{\overrightarrow{F}}_1-{\overrightarrow{F}}_2\right|$  <!-- [if gte mso 9]><xml> </xml><![endif]-->

For a given system find out $T_1\text{'}$ and $T_2\text{'}$ (forces exerted by the pulley on the support) respectively.

A ball is projected from ground with initial momentum p at an angle θ . What is the magnitude of net change in linear momentum when it reaches at maximum height of journey?

When an elevator is moving downward with a increasing speed, the apparent weight of a body inside elevator