NEET UG Physics — Mechanics previous year questions with solutions.
A ball of mass $0.15\mathrm{kg}$ is dropped from a height $10m$ strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is $(g=10m{s}^{-2})$ nearly :
A uniform rod of length $200\mathrm{cm}$ and mass $500g$ is balanced on a wedge placed at $40\mathrm{cm}$ mark. A mass of $2\mathrm{kg}$ is suspended from the rod at $20\mathrm{cm}$ and another unknown mass $m$ is suspended from the rod at $160\mathrm{cm}$ mark as shown in the figure. Find the value of $m$ such that the rod is in equilibrium. $(g=10m{s}^{-2})$ 
A particle is released from height $S$ from the surface of the Earth. At a certain height its kinetic energy is three times its potential energy. The height from the surface of the earth and the speed of the particle at that instant are respectively___
The escape velocity from the Earth's surface is $v$. The escape velocity from the surface of another planet having a radius four times that of Earth and the same mass density is:
A particle of mass $m$ is projected with a velocity $v=k{V}_{e}(k<1)$ from the surface of the earth (${V}_{e}=$ escape velocity). The maximum height above the surface reached by the particle is___
A small block slides down on a smooth inclined plane, starting from rest at time $t=0$. Let ${S}_{n}$ be the distance travelled by the block in the interval $t=n-1$ to $t=n$. Then, the ratio $\frac{{s}_{n}}{{s}_{n+1}}$ is:
Find the torque about the origin when a force of $3\hat{j}N$ acts on a particle whose position vector is $2\hat{k}m$.
The angular speed of the wheel of a vehicle is increased from, $360\mathrm{rpm}$ to $1200\mathrm{rpm}$ in $14s$. Its angular acceleration is,
A plano-convex lens of unknown material and unknown focal length is given. With the help of a spherometer we can measure the
A ball is thrown vertically downward with a velocity of $20m{s}^{-1}$ from the top of a tower. It hits the ground after some time with a velocity of $80m{s}^{-1}$. The height of the tower is: $(g=10m{s}^{-2})$
A capillary tube of radius $r$ is immersed in water and water rises in it to a height $h$. The mass of the water in the capillary is $5g$. Another capillary tube of radius $2r$ is immersed in water. The mass of water that will rise in this tube is:
A barometer is constructed using a liquid (density $=760\mathrm{kg}{m}^{-3}$) What would be the height of the liquid column, when a mercury barometer reads $76\mathrm{cm}?$ (density of mercury $=13600\mathrm{kg}{m}^{-3}$)
Dimensions of stress are:
Three identical spheres, each of mass $M,$ are placed at the corners of a right angle triangle with mutually perpendicular sides equal to $2m$ (see figure). Taking the point of intersection of the two mutually perpendicular sides as the origin, find the position vector of centre of mass. 
A screw gauge has least count of $0.01\mathrm{mm}$ and there are $50$ divisions in its circular scale. The pitch of the screw gauge is:
Calculate the acceleration of the block and trolly system shown in the figure. The coefficient of kinetic friction between the trolly and the surface is $0.05.$ ($g=10m{s}^{-2},$ mass of the string is negligible and no other friction exists). 
A liquid does not wet the solid surface if angle of contact is:
A person sitting in the ground floor of a building notices through the window, of height $1.5m,$ a ball dropped from the roof of the building crosses the window in $0.1s.$ What is the velocity of the ball when it is at the topmost point of the window? $(g=10m{s}^{-2})$
Taking into account of the significant figures, what is the value of $9.99m–0.0099m$?
A wire of length $L$, area of cross section $A$ is hanging from a fixed support. The length of the wire changes to ${L}_{1}$ when mass $M$ is suspended from its free end. The expression for Young's modulus is:
Two bodies of mass $4 \mathrm{kg}$ and $6 \mathrm{kg}$ are tied to the ends of a massless string. The string passes over a pulley which is frictionless (see figure). The acceleration of the system in terms of acceleration due to gravity $(g)$ is: 
A point mass $m$ is moved in a vertical circle of the radius $r$ with the help of a string. The velocity of the mass is $\sqrt{7gr}$ at the lowest point. The tension in the string at the lowest point is:
The angle of $1'$ (minute of arc) in radian is nearly equal to
What is the depth at which the value of acceleration due to gravity becomes $\frac{1}{n}$, times the value at the surface of the earth? (radius of the earth $=R$)