Volume 1
A weightless rod is acted on by upward parallel forces of 2N and 4N on ends A and B respectively. The total length of the rod AB=3m. To keep the rod in equilibrium a force of 6N should act in the following manner
26
Nov
A weightless rod is acted on by upward parallel forces of 2N and 4N on ends A and B respectively. The total length of the rod AB=3m. To keep the rod in equilibrium a force of 6N should act in the following manner A pulley is hinged at the centre and a massless thread is [...]
A solid uniform disk of mass m rolls without slipping down a fixed inclined plane with an acceleration a. If the frictional force on the disc due to surface of the plane i
26
Nov
A solid uniform disk of mass m rolls without slipping down a fixed inclined plane with an acceleration a. If the frictional force on the disc due to surface of the plane i A solid uniform disk of mass m rolls without slipping down a fixed inclined plane with an acceleration a. If the frictional [...]
A pulley is hinged at the centre and a massless thread is wrapped around it. The thread is pulled with a constant force F starting from rest. As the time increases?
26
Nov
A pulley is hinged at the centre and a massless thread is wrapped around it. The thread is pulled with a constant force F starting from rest. As the time increases? A pulley is hinged at the centre and a massless thread is wrapped around it. The thread is pulled with a constant force F [...]
A particle of mass 2 kg located at the position (i^+j^)m has a velocity 2(+i^−j^+k^) m/s. Its angular momentum about z-axis in kgm2/s is :
26
Nov
A particle of mass 2 kg located at the position (i^+j^)m has a velocity 2(+i^−j^+k^) m/s. Its angular momentum about z-axis in kgm2/s is : A particle of mass 2 kg located at the position (i^+j^)m has a velocity 2(+i^−j^+k^) m/s. Its angular momentum about z-axis in kgm2/s is : November 26, 2020 Category: Arihant [...]
A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown figure. At any instant, for the lower most point of the disc,
26
Nov
A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown figure. At any instant, for the lower most point of the disc, A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown figure. At any instant for the lower most point [...]
A plank P is placed on a solid cylinder S, which rolls on a horizontal surface. The two are of equal mass. There is no slipping at any of the surfaces in contact. The ratio of kinetic energy of P to the kinetic energy of S is
26
Nov
A plank P is placed on a solid cylinder S, which rolls on a horizontal surface. The two are of equal mass. There is no slipping at any of the surfaces in contact. The ratio of kinetic energy of P to the kinetic energy of S is A plank P is placed on a solid [...]
A uniform rod of mass 20 kg and length 1.6 m is pivoted at its end and swings freely in the vertical plane. Angular acceleration of rod just after the rod is released from rest in the horizontal position is:
26
Nov
A uniform rod of mass 20 kg and length 1.6 m is pivoted at its end and swings freely in the vertical plane. Angular acceleration of rod just after the rod is released from rest in the horizontal position is: A ball of mass m moving vertically down collides with inclined surface of the wedge [...]
A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction at A and B are
26
Nov
A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction at A and B are A [...]
A ball of mass m moving vertically down , collides with inclined surface of the wedge . After the collision , wedge starts moving in horizontal direction with velocity v0 . If all the surfaces are smooth then impulse applied by wedge on the ball during collision is given by
26
Nov
A ball of mass m moving vertically down , collides with inclined surface of the wedge . After the collision , wedge starts moving in horizontal direction with velocity v0 . If all the surfaces are smooth then impulse applied by wedge on the ball during collision is given by A ball of mass m [...]
A smooth sphere is moving on a horizontal surface with velocity vector 2i +2j immediately before it hits a vertical wall. The wall is parallel to j vector and the coefficient of restitution between the sphere and the wall is e=1/2. The velocity vector of the sphere after it hits the wall is
26
Nov
A smooth sphere is moving on a horizontal surface with velocity vector 2i +2j immediately before it hits a vertical wall. The wall is parallel to j vector and the coefficient of restitution between the sphere and the wall is e=1/2. The velocity vector of the sphere after it hits the wall is [...]