1

JEE Main 2021 (Online) 25th July Morning Shift

Numerical

+4

-1

In the reported figure, two bodies A and B of masses 200 g and 800 g are attached with the system of springs. Springs are kept in a stretched position with some extension when the system is released. The horizontal surface is assumed to be frictionless. The angular frequency will be ____________ rad/s when k = 20 N/m.

Your input ____

2

JEE Main 2021 (Online) 20th July Morning Shift

Numerical

+4

-1

In a spring gun having spring constant 100 N/m a small ball 'B' of mass 100 g is put in its barrel (as shown in figure) by compressing the spring through 0.05 m. There should be a box placed at a distance 'd' on the ground so that the ball falls in it. If the ball leaves the gun horizontally at a height of 2 m above the ground. The value of d is _________ m. (g = 10 m/s

^{2}).Your input ____

3

JEE Main 2021 (Online) 18th March Evening Shift

Numerical

+4

-1

A ball of mass 4 kg, moving with a velocity of 10 ms

^{$$-$$1}, collides with a spring of length 8 m and force constant 100 Nm^{$$-$$1}. The length of the compressed spring is x m. The value of x, to the nearest integer, is ____________.Your input ____

4

JEE Main 2021 (Online) 18th March Morning Shift

Numerical

+4

-1

As shown in the figure, a particle of mass 10 kg is placed at a point A. When the particle is slightly displaced to its right, it starts moving and reaches the point B. The speed of the particle at B is x m/s. (Take g = 10 m/s

The value of 'x' to the nearest integer is __________.

^{2})The value of 'x' to the nearest integer is __________.

Your input ____

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