List of top Physics Questions on Mechanics asked in AP ECET Metallurgical Eng, AP ECET ECE

A stone projected up with a velocity 'u' reaches two points A and B at a distance 'h' with velocities $u/2$ and $u/3$. The maximum height reached by the stone is

A ball is thrown at a speed of 20 m $s^{-1}$ at an angle of $30^{0}$ with the horizontal. The maximum height reached by the ball is ($g=10~ms^{-2}$)}

A body of mass 2 kg is moving with a constant acceleration of $(2\hat{i} + 3\hat{j} - \hat{k})ms^{-2}$ If the displacement made by the body is $(3\hat{i} - \hat{j} + 2\hat{k})$ m then the work done is

The average power generated by a 90 kg mountain climber who climbs a summit of height 600 m in 90 minutes is ($g=10~ms^{-2}$)

A body of mass 16 kg explodes into two pieces of masses 4 kg and 12 kg. The velocity of the 12 kg mass is 4 $ms^{-1}$. The kinetic energy of the second piece is

Two bodies of masses of 1 g and 4 g are moving with equal kinetic energies. The ratio of the magnitudes of their linear momenta is

If the component of one vector in the direction of another vector is zero, then those two vectors are

If the resultant of two vectors is equal to either of vectors, the angle between them is

The angle made by the vector $(2\hat{i} + 2\hat{j})$ with X-axis is

The length of a vector $(3\hat{i} + \hat{j} + 2\hat{k})$ in XY plane is

A force applied by an engine on train of mass $2.05 \times 10^6 \text{ Kg}$ changes its velocity from $5 \text{ m/s}$ to $25 \text{ m/s}$ in $5 \text{ minutes}$. The power of the engine is

The kinetic energy at the highest point of the trajectory of a projectile is $200 \text{ J}$. If the mass of the projectile is $1 \text{ Kg}$ and the maximum height reached by it is $20 \text{ m}$, then velocity of the projectile from the ground is

In a hydroelectric power station, the height of the dam is $10\text{ m}$. How many kilograms of water must fall per second on the blades of a turbine in order to generate $1\text{ MW}$ of electrical power? $[g = 10\text{ m/s}^2]$

Two blocks of masses $4\text{ kg}$ and $2\text{ kg}$ are connected by a heavy string and placed on rough horizontal plane. The $2\text{ kg}$ block is pulled with a constant force $F$. The coefficient of friction between the blocks and the ground is $0.5$. The value of $F$ so that tension in the string is constant throughout during the motion of the blocks is

When a bicycle is in motion and pedalled, the force of friction exerted by ground on the two wheels is such that it acts

A projectile is thrown into air with velocity u at an angle $\theta$ to the horizontal. The time at which its direction of motion is perpendicular to its initial direction is

Two stones are projected with the same speed but making different angles with the horizontal. Their horizontal ranges are equal. The angle of projection of one is $\pi/8$ and the maximum height reached by it is $102$ metres. Then the maximum height reached by the other in metres is

A ball is projected vertically up with a velocity of $40 \text{ ms}^{-1}$ from ground. At the same time another ball is dropped from a height of $100 \text{ m}$. The magnitudes of their velocities are equal after

The position $x$ of a particle with respect to time '$t$' along x- axis is given by $x = 9t^2 - t^3$ where $x$ is in metres and $t$ in seconds. The position of this particle when it achieves maximum speed along the x direction is

Of the vectors given below, the parallel vectors are $\vec{A} = 6\hat{i} + 8\hat{j}$, $\vec{B} = 210\hat{i} + 280\hat{k}$, $\vec{C} = 5.1\hat{i} + 6.8\hat{j}$, $\vec{D} = 3.6\hat{i} + 8\hat{j} + 48\hat{k}$

If $|\vec{A} \times \vec{B}| = \sqrt{3} \vec{A} \cdot \vec{B}$ then the value of $|\vec{A} + \vec{B}|$ is