Questions
Two equal masses m1 and m2 moving along the same straight line with velocities + 3 m/s and – 5 m/s respectively collide elastically. Their velocities after the collision will be respectively
detailed solution
Correct option is D
As m1=m2 therefore after elastic collision velocities of masses get interchanged i.e. velocity of mass m1=−5 m/sand velocity of mass m2=+3 m/sSimilar Questions
A ball is projected vertically down with an initial velocity from a height of 20 m onto a horizontal floor. During the impact it loses 50% of its energy and rebounds to the same height. The initial velocity of its projection is (in m/s) [Take g = 10 m/s2]
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