A 2.0-kg mass is attached to a spring with a spring constant of 60 N/m. The mass is displaced by 8.0 cm from its equilibrium position and is then released with a speed of 0.22 m/s. What is the mass’s speed when it is halfway to the equilibrium position?

A spring has a force constant of 18.9 N/m and a rest length of 0.35 m.The spring is stretched to a length of 1.2 m and attached to a mass of 0.45 kg. When the spring is released, what is the speed of the mass when the spring has contracted to 0.70 m long?

A block of mass 2.0 kg is attached to a horizontal spring that has a force constant of 100.0 N/m . The spring is compressed 2.0 cm and is then released from rest. Calculate the speed of the block as it passes through the equilibrium position x=0 if a constant friction force of 4.0 N retards its motion from the moment it is released.

A 0.19 kg mass is held at rest against a compressed spring with a spring constant of 103 N/m. When released, the mass leaves the spring with a speed of 6.28 m/s. Assuming that the spring force is wholly responsible for changing the motion of the mass, by what distance was the spring initially compressed from its equilibrium position? Enter a number with 3 decimal places

A horizontal spring on a frictionless surface with a spring constant of 50 N/m is compressed 0.4 m away from equilibrium and it is held at rest. A 5 kg mass is attached at the end of the spring. The spring-mass system is released from rest. Calculate the kinetic energy of the mass when it is halfway back to its equilibrium position (0.2 m away).

A spring-powered dart gun is unstretched and has a spring constant 16.0 N/m. The spring is compressed by 8.00 cm and a 5.00 gram projectile is placed in the gun. The velocity of the projectile when it is shot from the gun is

A moving 2.90 kg block collides with a horizontal spring whose spring constant is 327 N/m.The block compresses the spring a maximum distance of 12.00 cm from its rest position. The coefficient of kinetic friction between the block and the horizontal surface is 0.400. What is the work done by the spring in bringing the block to rest? How much mechanical energy is being dissipated by the force of friction while the block is being brought to rest by the spring? What is the speed of the block when it hits the spring?

A 2000 kg car moving at 18 m/s hits an initially uncompressed spring with a spring constant of 8 x 106 N/m. The max compression of the spring in meters is?

The string on a bow can be described as a spring. A particular bow’s string has a spring constant of 110 N/m and is pulled back 0.6 m to launch a 0.02 kg arrow. If the bow has a mass of 1 kg, what will be the speed at which the arrow is launched?

A 0.28 kg mass is held against a compressed spring with a spring constant of 2,446 N/m. The mass is initially at rest upon a horizontal surface and the spring force is directed parallel to the plane of the surface. If the coefficient of kinetic friction is 0.716, with what speed does the mass leave contact with the spring if the spring is initially compressed by 0.068 m?