Chapter 6 – Newton’s Laws of Motion (With Friction) and Dynamics of Circular Motion
Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 6 - Newton's Laws of Motion (With Friction) and Dynamics of Circular Motion
Blocks A and B in the Fig are connected by a bar of negligible weight .Mass of each block is 170 kg and μA=0.2 and μB=0.4 where μA and μBare the coefficient of limiting friction between block and plane calculate the force developed in the bar(g=10ms^−2)
20
Oct
Blocks A and B in the Fig are connected by a bar of negligible weight .Mass of each block is 170 kg and μA=0.2 and μB=0.4 where μA and μBare the coefficient of limiting friction between block and plane calculate the force developed in the bar(g=10ms^−2) each of mass m. The system is released from [...]
A horizontal force, just sufficient to move a body of mass 4kg lying on a rough horizontal surface is applied on it. The coefficients of static and kinetic friction between the body and the surface are 0.8 and 0.6 respectively. If the force continues to act even after the block has started moving, the acceleration of the block in ms^−2 is (g = 10 ms^−2 )
20
Oct
A horizontal force, just sufficient to move a body of mass 4kg lying on a rough horizontal surface is applied on it. The coefficients of static and kinetic friction between the body and the surface are 0.8 and 0.6 respectively. If the force continues to act even after the block has started moving, the acceleration [...]
A block of mass 15kg is resting on a rough inclined plane as shown in figure ,The block is tied by a horizontal string which has a tension 50 N The coefficient of friction between the surfaces of contact is
20
Oct
A block of mass 15kg is resting on a rough inclined plane as shown in figure ,The block is tied by a horizontal string which has a tension 50 N The coefficient of friction between the surfaces of contact is A block of mass 15kg is resting on a rough inclined plane as shown in [...]
A box of mass 8kg placed on a rough inclined plane of inclination θ its downward motion can be prevented by applying an upward pull F and it can be made to slide upward applying a force 2F .The coefficient of friction between the box and the inclined plane is
19
Oct
A box of mass 8kg placed on a rough inclined plane of inclination θ its downward motion can be prevented by applying an upward pull F and it can be made to slide upward applying a force 2F .The coefficient of friction between the box and the inclined plane is each of mass m. The [...]