Jee Main
Work Power And Energy
JEE Main 2021 (Online) 31st August Evening Shift
MCQ+4 / -12021
A block moving horizontally on a smooth surface with a speed of 40 m/s splits into two parts with masses in the ratio of 1 : 2. If the smaller part moves at 60 m/s in the same direction, then the fractional change in kinetic energy is :-
