Friction, and Inclined Plane Friction Motion
« Previous Topic: Forces in Mechanism Next Topic: System of Varying Mass »
LAWS OF MOTION (ADDITIONAL)

372197 Two blocks \(A\) and \(B\) are placed one over the other on a smooth horizontal surface. The maximum horizontal force that can be applied on the upper block B, so that \(A\) and \(B\) move without separation is \(49 \mathrm{~N}\). The coefficient of friction between \(A\) and \(B\) is
original image

1 0.2
2 0.3
3 0.5
4 0.8
Manipal UGET-2016
LAWS OF MOTION (ADDITIONAL)

372198 A small block of mass \(m\) is kept on a rough inclined surface of inclination \(\theta\) fixed in a elevator. The elevator goes up with a uniform velocity \(v\) and the block does not slide on the wedge. The work done by the force of friction on the block in time \(t\) will be:

1 zero
2 \(m g v t \cos ^{2} \theta\)
3 mgvt \(\sin ^{2} \theta\)
4 mgvt \(\sin 2 \theta\)
BITSAT-2014
NEET DIGITAL LIBRARY
LAWS OF MOTION (ADDITIONAL)

372197 Two blocks \(A\) and \(B\) are placed one over the other on a smooth horizontal surface. The maximum horizontal force that can be applied on the upper block B, so that \(A\) and \(B\) move without separation is \(49 \mathrm{~N}\). The coefficient of friction between \(A\) and \(B\) is
original image

1 0.2
2 0.3
3 0.5
4 0.8
Manipal UGET-2016
LAWS OF MOTION (ADDITIONAL)

372198 A small block of mass \(m\) is kept on a rough inclined surface of inclination \(\theta\) fixed in a elevator. The elevator goes up with a uniform velocity \(v\) and the block does not slide on the wedge. The work done by the force of friction on the block in time \(t\) will be:

1 zero
2 \(m g v t \cos ^{2} \theta\)
3 mgvt \(\sin ^{2} \theta\)
4 mgvt \(\sin 2 \theta\)
BITSAT-2014
Join With Us for More Updates