AIIMS Physics Motion in a Straight Line Class 11 Questions

A ball is dropped from a bridge 122.5 m above a river. After the ball has been falling for 2s, a second ball is thrown straight down after it. What must the initial velocity of the second ball be so that both hit the water at the same time?

The motion of a particle along a straight line is described by equation: $x = 8 + 12t - t^3$ where $x$ is in metre and $t$ in second. The retardation of the particle when its velocity becomes zero, is:

The water drops fall at regular intervals from a tap $5\text{ m}$ above the ground. The third drop is leaving the tap at an instant when the first drop touches the ground. How far above the ground is the second drop at that instant ? (Take $g = 10\text{ m/s}^2$)

A particle experiences constant acceleration for 20 sec after starting from rest. If it travels a distance s₁ in the first 10 sec and distance s₂ in the next 10 sec, then

The position of a particle moving in the x-y plane at any time t is given by: x = (3t² - 6t) metres; y = (t² - 2t) metres. Select the correct statement.

The displacement time graph of a particle moving along a straight line is drawn below. The accelerations of the particle during the regions OP, PQ and QR are

Which of the following velocity-time graphs shows a realistic situation for a body in motion?

Two spheres of same size, one of mass 2 kg and another of mass 4 kg are dropped simultaneously from the top of Qutab Minar (height = 72 m). When they are 1 m above the ground the two spheres have the same

When a ball is thrown up vertically with velocity v₀, it reaches a maximum height of h. If one wishes to triple the maximum height then the ball should be thrown with velocity

Which of the following velocity-time graphs shows a realistic situation for a body in motion?

Assertion : The driver in a vehicle moving with a constant speed on a straight road is in a non-inertial frame of reference. Reason : A reference frame in which Newton’s laws of motion are applicable is non-inertial.

A body starting from rest moves along a straight line with a constant acceleration. The variation of speed (v) with distance (s) is represented by the graph

A ball is thrown vertically upwards. Which of the following plots represents the speed-time graph of the ball during its flight if air resistance is not ignored?

A particle starts from rest and has an acceleration of 2 m/s² for 10 sec. After that, it travels for 30 sec with constant speed and then undergoes a retardation of 4 m/s² and comes back to rest. The total distance covered by the particle is

The kinetic energy of a body becomes four times its initial value. The new linear momentum will be

If one comes to rest and the other body moves with velocity v, what would be the value of v?

From the figure find the capacitance of the capacitor?