1

JEE Main 2021 (Online) 24th February Evening Shift

Numerical

+4

-1

Two solids A and B of mass 1 kg and 2 kg respectively are moving with equal linear momentum. The ratio of their kinetic energies (K.E.)

_{A}: (K.E.)_{B}will be $${{A \over 1}}$$, so the value of A will be ________.Your input ____

2

JEE Main 2021 (Online) 24th February Morning Shift

Numerical

+4

-1

A ball with a speed of 9 m/s collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of 30$$^\circ$$ with the original direction. The ratio of velocities of the balls after collision is x : y, where x is __________.

Your input ____

3

JEE Main 2020 (Online) 6th September Evening Slot

Numerical

+4

-0

The centre of mass of solid hemisphere of radius 8 cm is x from the centre of the flat surface. Then
value of x is __________.

Your input ____

4

JEE Main 2020 (Online) 6th September Morning Slot

Numerical

+4

-0

Two bodies of the same mass are moving with the same speed, but in different directions in a
plane. They have a completely inelastic collision and move together thereafter with a final speed
which is half of their initial speed. The angle between the initial velocities of the two bodies (in
degree) is ________.

Your input ____

Questions Asked from Center of Mass and Collision (Numerical)

Number in Brackets after Paper Indicates No. of Questions

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