List of top Physics Questions on laws of motion asked in BHU UET

A wooden block of mass $M$ resting on a rough horizontal surface is pulled with a force $F$ at an angle with the horizontal. If $ \mu $ is the coefficient of kinetic friction between the block and the surface, then acceleration of the block is

A machine gun is mounted on a $200 \,kg$ vehicle on a horizontal smooth road (friction negligible). The gun fires $10$ bullets/s with a velocity of $500 \,ms$ lf the mass of each bullet be $10\, g$, what is the acceleration produced in the vehicle?

Three blocks of masses $m_1, m_2$ and $m_3$ kg are placed in contact with each other on a frictionless table. A force $F$ is applied on the heaviest mass $m_1$; the acceleration of $m_3$ will be

A spring balance and a physical balance are kept in a lift. In these balances equal masses are placed. lf now the lift starts moving upwards with constant acceleration, then

A man weighs $80\, kg$. He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of $5 \,ms^{-2}$ What would be the reading on the scale? ($g = 10\, ms^{-2})$

When a car moves on a road with uniform speed of $30\,km /h$, then the net resultant force on the car is

A 0.5 kg ball moving with a speed of 12 $ms^{-1}$ strikes a hard wall at an angle of 30$^{\circ}$ with the wall. It is reflected with the same speed and at the same angle. If the ball is in contact with the wall for 0.25 s, the average force acting on the wall is :-

A ball of mass $150\,g$ moving with an acceleration $20 \,m/s^2$ is hit by a force, which acts on it for $0.1\, s$. The impulsive force is :

A car of mass $ m $ moves in a horizontal circular path of radius $ r $ meter. At an instant its speed is $ v\,m/s $ and is increasing at a rate a $ m/s^{2} $ , then the acceleration of the car is: