List of top Physics Questions on Motion in a straight line

A horizontal bridge is built across a river. A student standing on the bridge throws a small ball vertically upwards with a velocity $4\ ms^{-1}$. The ball strikes the water surface after $4s$. The height of bridge above water surface is
(Take: $g=10\ ms^{-2}$)

A disc is rolling without slipping on a surface. The radius of the disc is $ R $. At $ t = 0 $, the topmost point on the disc is $ A $ as shown in the figure. When the disc completes half of its rotation, the displacement of point $ A $ from its initial position is:

A body is released from a height equal to the radius (r) of the earth. The velocity of the body when it strikes the surface of the earth will be:

A particle starts with an initial velocity of 10.0 m/s along x-direction and accelerates uniformly at the rate of 2.0 m/s$^2$. The time taken by the particle to reach the velocity of 60.0 m/s is

An object is allowed to fall from a height $R$ above the earth, where $R$ is the radius of earth Its velocity when it strikes the earth's surface, ignoring air resistance, will be

A car is moving with speed of 150km/h and after applying the brake it will move 27m before it stops. If the same car is moving with a speed of one third the reported speed then it will stop after travelling ______m distance.

Calculate the maximum acceleration of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is 0.15 (g=10ms^-2).

A juggler throws balls vertically into the air such that he throws the next ball when the previous one is at its highest point. If he throws 3 balls each second, then the maximum height reached by each ball is
(Acceleration due to gravity $g = 10~\text{ms}^{-2}$)

A bullet from a gun is fired on a rectangular wooden block with velocity u. When the bullet travels 24 cm through the block along its length horizontally, velocity of bullet becomes $\frac{u}{3}$. Then it further penetrates into the block in the same direction before coming to rest exactly at the other end of the block. The total length of the block is:

A vehicle travels half the distance with speed θ and the remaining distance with speed 2θ. its average speed is

A particle at rest starts from the origin with a constant acceleration a that makes an angle 60° with the positive y-axis. If its displacement along y-axis is 10m in time 2s,then the magnitude of a is:

A balloon starting from rest ascends from the ground with a uniform acceleration of 4 ft/sec². At the end of 5 sec, a stone is dropped from it. If t be the time to reach the stone to the ground and H is the height of the balloon when the stone goes to the floor, Then

A car is moving with an initial speed of 5 m/s. A constant braking force is applied and the car is brought to rest in a distance of 10 m. What is the average speed of the car during the deceleration process?

In a reflecting telescope, a secondary mirror is used to:

If a body of mass 5 kg is in equilibrium due to forces $F_1$, $F_2$ and $F_3$. $F_2$ and$F_3$ are perpendicular to each other. If $F_1$ is removed then find the acceleration of the body. Given $F_2$=6N and $F_3$=8N

A particle is thrown vertically upward with initial velocity of 150m/s. Find the ratio of its speed at t=3s and t=5s. (Take g=10 $ms^{-2}$)

Spherical insulating ball and a spherical metallic ball of same size and mass are dropped from the same height Choose the correct statement out of the following (Assume negligible air friction)

If the position of a particle is changing with time as r=t²-2t (m). Find the velocity at t=2s.

A motorcyclist is trying to jump across a path as shown by driving horizontally off a cliff A at a speed of 5 m/s. Ignore air resistance and take g = 10m/s² . The speed with which he touches the cliff B is?

If $t = \sqrt{x} + 4$, then $\left.\frac{dx}{dt}\right|_{t=4}$ is

A ball is thrown vertically upwards with a velocity of $19.6 ms^{–1}$ from the top of a tower. The ball strikes the ground after $6 s$. The height from the ground up to which the ball can rise will be $(k/5) m$. The value of k is ______ (use $g = 9.8 m/s^2$)

A car is moving with a speed of 54 km / h. If after 3 s, the driver applies brakes and it stops, then how much distance is covered by the car before coming to rest?

The ratio of the distance travelled by a freely falling body in the 1^st, 2^nd, 3^rd and 4^th second

The displacement $ x $ of a particle in a straight line motion is given by $ x = 1 - t - t^2 $. The correct representation of the motion is

A cyclist starting from rest moves with uniform acceleration and covers 120m in 10s. Then his acceleration in ms^-2 is