Physics-
General
Easy
Question
A particle of mass m is projected at an angle of 60° with a velocity of 20 m/s relative to the ground from a plank of same mass m which is placed on smooth surface Initially plank was at rest The minimum length of the plank for which the ball will fall on the plank itself is
- m
- m
- m
- m
The correct answer is: m
time of flight =
Displacement of particle in this interval =
displacement of plank in this interval = m
Total =
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