A toy gun a spring of force constant `k`. When changed before being triggered in the upward direction, the spring is compressed by a distance `x`. If the mass of the shot is `m`, on the being triggered it will go up to a height of

Two masses m_1 and m_2 re connected by a spring of spring constant k and are placed on as frictionless horizontal surface. Initially the spring is stretched through a distance x_0 when the system is released from rest. Find the distance moved by the two masses before they again come to rest.

Two masses m_1 and m_2 re connected by a spring of spring constant k and are placed on as frictionless horizontal surface. Initially the spring is stretched through a distance x_0 when the system is released from rest. Find the distance moved by the two masses before they again come to rest.

When a spring is compressed by 0.05 m a restoring force of 10 N is developed in it. Then the force constant of the spring is