1
JEE Main 2021 (Online) 25th February Evening Shift
Numerical
+4
-1
Change Language
Two particles having masses 4 g and 16 g respectively are moving with equal kinetic energies. The ratio of the magnitudes of their linear momentum is n : 2. The value of n will be ___________.
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2
JEE Main 2021 (Online) 24th February Evening Shift
Numerical
+4
-1
Change Language
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 ________.
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3
JEE Main 2021 (Online) 24th February Morning Shift
Numerical
+4
-1
Change Language
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 __________.
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4
JEE Main 2020 (Online) 6th September Evening Slot
Numerical
+4
-0
Change Language
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 __________.
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