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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 [...]
A boy of mass 60 kg is standing over a platform of mass 40 kg placed over a smooth horizontal surface. He throws a stone of mass 1 kg with velocity v=10 m/s at an angle 450 with respect to the ground.Find the displacement of the platform (with boy) on the horizontal surface when the stone lands on the ground. (g=10m/s2)
26
Nov
A boy of mass 60 kg is standing over a platform of mass 40 kg placed over a smooth horizontal surface. He throws a stone of mass 1 kg with velocity v=10 m/s at an angle 450 with respect to the ground.Find the displacement of the platform (with boy) on the horizontal surface when the [...]
Two blocks of masses 2kg and 1kg respectively are tied to the ends of a string which passes over a light frictionless pulley. The masses are held at rest at the same horizontal level and then released. The distance traversed by the centre of mass in 2s is : (g=10m/s2)
26
Nov
Two blocks of masses 2kg and 1kg respectively are tied to the ends of a string which passes over a light frictionless pulley. The masses are held at rest at the same horizontal level and then released. The distance traversed by the centre of mass in 2s is : (g=10m/s2) A metre rule weighing 100 [...]
A man of mass m moves with a constant speed on a plank of mass M and length l kept initially at rest on a frictionless horizontal surface, from one end to the other in time t. The speed of the plank relative to ground while man is moving, is
26
Nov
A man of mass m moves with a constant speed on a plank of mass M and length l kept initially at rest on a frictionless horizontal surface, from one end to the other in time t. The speed of the plank relative to ground while man is moving, is A man of mass m [...]
A ball strikes a horizontal floor at an angle θ=45o. The coefficient of restitution between the ball and the floor is e=21. The fraction of its kinetic energy lost in collision is
26
Nov
A ball strikes a horizontal floor at an angle θ=45o. The coefficient of restitution between the ball and the floor is e=21. The fraction of its kinetic energy lost in collision is A ball strikes a horizontal floor at an angle θ=45o. The coefficient of restitution between the ball and the floor is e=21. The [...]
The energies E1 and E2 of two raditons are 25eV and 50eV respectively . The relation between their wavelengths i.e., lamda 1 and lamda 2 will be
26
Nov
The energies E1 and E2 of two raditons are 25eV and 50eV respectively . The relation between their wavelengths i.e., lamda 1 and lamda 2 will be lamda 1 and lamda 2 will be The energies E1 and E2 of two raditons are 25eV and 50eV respectively . The relation between their wavelengths i.e. November [...]
The total number of atomic orbitals in fourth energy level of an atom is (a) 4 (b) 8 (c) 16 (d) 32
26
Nov
The total number of atomic orbitals in fourth energy level of an atom is (a) 4 (b) 8 (c) 16 (d) 32 The total number of atomic orbitals in fourth energy level of an atom is (a) 4 (b) 8 (c) 16 (d) 32The total number of atomic orbitals in fourth energy level of an [...]
Two billiard balls of same size and mass are in contact on a billiard table. A third ball of same mass and size strikes them symmetrically and remains at rest after the impact. Find the coefficient of restitution between the balls is
26
Nov
Two billiard balls of same size and mass are in contact on a billiard table. A third ball of same mass and size strikes them symmetrically and remains at rest after the impact. Find the coefficient of restitution between the balls is A metre rule weighing 100 g rests on a table with a part [...]
Two smooth objects with a coefficient of restitution e, collides directly and bounce as shown Newton’s law of restitution gives
26
Nov
Two smooth objects with a coefficient of restitution e, collides directly and bounce as shown Newton’s law of restitution gives collides directly and bounce as shown Newton's law of restitution gives Two smooth objects with a coefficient of restitution e November 26, 2020 Category: Arihant Physics by D.C Pandey , Chapter 8 - COM, Momentum [...]