Which is TRUE about elastic and inelastic collisions? * KE and momentum are conserved in both elastic and inelastic collision. KE is conserved on both but O momentum is not conserved in inelastic collision. KE and momentum is not conserved in inelastic collision while there is no transformation of energy and change in momentum in elastic collision. KE and momentum is conserved in inelastic collision while there is a transformation of energy and change in momentum in elastic collision. Correct answer not found

A standard hammer has a head made of steel which bounces off the nails it hits. A special “dead blow” hammer has a hollow head which is loosely filled with tiny spheres of lead or sand that can rattle around inside the head. If you have a standard and a “dead blow” hammer whose heads have the same mass and you swing them at the same velocity, which one will deliver higher impulse to the nail it strikes? A. The normal hammer B. The dead blow hammer C. They will both deliver the same force.

A bullet flying horizontally hits a wooden block that is initially at rest on a frictionless, horizontal surface. The bullet gets stuck in the block, and the bullet–block system has a final speed vf. Find the final speed of the bullet–block system in terms of the mass of the bullet mb, the speed of the bullet before the collision vb, the mass of the block mwb, and the amount of thermal energy generated during the collision Eth.

A ball of mass 2-kg is traveling to the right with a speed of 10 m/s. Another ball of mass 8-kg is traveling to the left with a speed of 25 m/s. e= 0.8 Determine: a) The speed and direction of each ball after this head on collision b) The energy lost as a result of this collision c) Where do you think this energy went?

A 41.0 g marble moving at 2.30 m/s strikes a 29.0 g marble at rest. Note that the collision is elastic and that it is a "head-on" collision so all motion is along a line. What is the speed of each marble immediately after the collision?

When an inelastic material is in a collision, (A) the work done to deform the material is equal to the work done to return the material to its original shape. B the work done to deform the material is equal to the increase in the system's total kinetic energy. C some of the work done to deform the material is converted to other forms of energy. No answer the work done to deform the material is equal to the work the material does to other objects in the E collision.

A 4 kg block moving right at 6 m/s collides elastically with a 2 kg block moving right at 3 m/s. Calculate the final kinetic energy. What is the velocity of a 10 kg object move if an average power of 120 watts is used and the applied force is parallel to the surface? 1.22 m/s 12.2 m/s 0.82 m/s 102 m/s 82 m/s

An empty freight car with a mass of 10,000 kg rolls at 5 m/s along a level track and collides with a loaded car with a mass of 20,000 kg, standing at rest with brakes released. Friction can be neglected. If the cars couple together, find their speed after the collision.a. Find the decrease in kinetic energy as a result of the collision.b. With what speed should the loaded car be rolling towards the empty car for both to be brought to rest by the collision?

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