Questions
In a football match a ball is kicked by a player with a force of 25 N for 0.2 s and then by another player with a force of 70 N for 0.1 s in the same direction. If the ball gains a velocity of 24 m/s after two kicks, the mass of ball is
detailed solution
Correct option is D
mV=F1t1+F2t2m×24=25×0.2+70×0.1m×24=12m=0.5kgTalk to our academic expert!
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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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