1

JEE Main 2021 (Online) 26th February Evening Shift

MCQ (Single Correct Answer)

+4

-1

Two masses A and B, each of mass M are fixed together by a massless spring. A force acts on the mass B as shown in the figure. If the mass A starts moving away from mass B with acceleration 'a', then the acceleration of mass B will be :

2

JEE Main 2021 (Online) 24th February Evening Shift

MCQ (Single Correct Answer)

+4

-1

A particle is projected with velocity v

_{0}along x-axis. A damping force is acting on the particle which is proportional to the square of the distance from the origin i.e. ma = $$-$$ $$\alpha$$x^{2}. The distance at which the particle stops :3

JEE Main 2020 (Online) 6th September Evening Slot

MCQ (Single Correct Answer)

+4

-1

A particle moving in the xy plane experiences a velocity dependent force

$$\overrightarrow F = k\left( {{v_y}\widehat i + {v_x}\widehat j} \right)$$ , where v

x and y components of its velocity $$\overrightarrow v $$ . If $$\overrightarrow a $$ is the

acceleration of the particle, then

which of the following statements is true for the particle?

$$\overrightarrow F = k\left( {{v_y}\widehat i + {v_x}\widehat j} \right)$$ , where v

_{x}and v_{y}are thex and y components of its velocity $$\overrightarrow v $$ . If $$\overrightarrow a $$ is the

acceleration of the particle, then

which of the following statements is true for the particle?

4

JEE Main 2020 (Online) 6th September Morning Slot

MCQ (Single Correct Answer)

+4

-1

An insect is at the bottom of a hemispherical ditch of radius 1 m. It crawls up the ditch but starts
slipping after it is at height h from the bottom. If the coefficient of friction between the ground and
the insect is 0.75, then h is :

(g = 10 ms

(g = 10 ms

^{–2})Questions Asked from Laws of Motion (MCQ (Single Correct Answer))

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