00:01
So, here we have given the question that is, if we using a horizontal force of 200 newton, that is given, we have a given force of value 200 newton.
00:14
So if we intend to move a wooden cabinet across a floor at a constant velocity, so that means velocity will be constant.
00:22
If we move any wooden cabinet across a floor at a constant velocity, so question is asking, what is the friction force that will be exerted on the cabinet.
00:35
So, question is asking about the friction pole.
00:38
So, as we know that, since the velocity of the cabinet is constant, since the velocity of the cabinet is constant, so its acceleration must be zero.
00:47
If velocity is constant, we know that dv by d t, acceleration equals to dv by d t.
00:53
So if v equals to constant, so we know that the differentiation of constant equals, equals to zero...
