Questions
A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes upto 2 m height further, find the magnitude of the force. Consider g = 10 m/s2
detailed solution
Correct option is B
From third equation of motion, v2 = u2 + 2as and F = ma2Fmd=2gh⇒F=mghd=20Nforce given by the hand mg+ma=20+0.2g=22NTalk to our academic expert!
Similar Questions
Statement I : The familiar equation mg = R for a body on a table is true only if the body is in equilibrium.
Statement II : The equality of mg and R has no connection with the third law.
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