Laws of MotionMedium
Question
A triangular wedge of mass M which is free to move, lies at rest on smooth horizontal plane. A man of mass m initially at rest starts running over wedge with constant speed u relative to wedge. If we do analysis from ground while man is running without jumping with constant speed over wedge.
Options
A.the power due to normal contact force on man is zero.
B.the friction force acting on man is mg sin θ
C.power due to friction on man is zero.
D.power due to normal contact force on wedge is positive.
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