List of practice Questions

A body of mass 2 kg, initially at rest, is moved by 3 m along the horizontal by a force of 10 N acting at an angle of $60^?$ with the horizontal. The kinetic energy gained by the body is
A body of mass $2\, kg$ travels according to the law $x\left(t\right)$ $=pt+qt^{2}+rt^{3}$ where $p=3 \,ms^{-1}$, $q=4\,ms^{-2}$ and $r=5 \,ms^{-3}$. The force acting on the body at $t=2$ seconds is
A body moves $6\,m$ north, $8\,m$ east and $10\,m$ vertically upwards, the resultant displacement from its initial position is
A body moving with uniform velocity is in equilibrium.
A body is released from the top of the tower H metre high. It takes t second to reach the ground. Where is the body after t/2 second of release ?
A body is rotating with angular velocity $\overrightarrow{\omega}=\left(3\hat{i}-4\hat{j}+\hat{k}\right)$. The linear velocity of a point having position vector $\overrightarrow{r}=\left(5\hat{i}-6\hat{j}+6\hat{k}\right)$ is
A body is moving under the action of two forces $\vec{F}_{1}$ $=2 \hat{i}$ $-5 \hat{j} ;$ $\vec{F}_{2}$ $=3 \hat{i}$ $-4 \hat{j}.$ Its velocity will become uniform under a third force $\vec{F}_{3}$ given by
A body is moving in a circular path with a constant speed. it has
A body is just floating on the surface of liquid. The density of the body is same as that of the liquid. The body is slightly pushed down. Then it will
A body is imparted motion from rest to move in a straight line. If it is then obstructed by an opposite force then
A body from height $h$ is dropped. If the coefficient of restitution is $e$, then calculate the height achieved after one bounce
A body is dropped from the roof of a multi storeyed building. It passes the ceiling of the 15th storey at a speed of $20/m s^{-1}$ .If the height of each storey is 4m, the number of storeys In the building is (take $g = 1 0/ms^{-2}$ and neglect air resistance)
A body is falling freely under the action of gravity alone in vacuum. Which of the following quantities remain constant during the fall?
A body is imparted motion from rest to move in a straight line. If it is then obstructed, by an opposite force, then
A body floats with one-third of its volume outside water and 3/4 of its volume outside another liquid. The density of the other liquid is
A body falling from a high minaret travels 40 m in the last 2 s of its fall to ground. Height of minaret is [Take $g = 10 \,m \,s^{-2}$]
A body covers a distance of $4\, m$ in $3^{rd}$ second and $12 \,m$ in $5^{th}$ second. If the motion is uniformly accelerated, how far will it travel in the next $3$ seconds ?
A body constrained to move along y-axis is subjected to a constant force $\vec{F} = -\hat{i}+2\hat{j}+3\hat{k}\,N$. The work done by this force in moving the body a distance of $4\, m$ along $y$-axis is
A body coo Is in 7 min from 60$^{\circ}$C to 40$^{\circ}$C. What time (in min) does it take to cooI from 40$^{\circ}$C to 28$^{\circ}$C, if surrounding temperature is 10$^{\circ}$C? (Assume Newton's law of cooling)
A body covers 200 cm in the first 2 seconds and 220 cm in the next 4 seconds. The velocity of the body at the end of the $7^{th}$ second is
A body covers 26, 28, 30, 32 meters in $10^{th}$, $11^{th}$, $12^{th}$ and $13^{th}$ seconds respectively. The body starts
A body at rest explodes into two pieces of same masses which
A boat takes 2 hours to travel 8km and back in still water lake.With water velocity of 4 kmph the time taken for going upstream of 8km and coming back is.
A bob of mass $m$ is suspended by a light string of length $ L $ . It is imparted a horizontal velocity $ v_0 $ at the lowest point A such that it completes a circle in the vertical plane.
Match Column I with Column II.
A body $A$ starts from rest with an acceleration $a_1$. After $2$ seconds, another body $B$ starts from rest with an acceleration $a_2$. If they travel equal distances in the 5th second, after the start of $A$, then the ratio $a_1: a_2$ is equal to