Recap !!!!!!

The SI unit for measuring momentum is …………………..

• kgm/s

• kgm²/s²

• joules /second

Power can be described as …………

• the rate of energy transferred

• change in kinetic energy

• ratio of work input to work output

work done is a vector quantity.

• true

• false

The energy possessed by an object due to its position is ………………

• kinetic energy

• gravitational potential energy

• elastic potential energy

The sum of the kinetic energy and the potential energy of the objects in a system is the system’s _________

• Chemical energy

• mechanical energy

• heat energy

………………….. principle states that the work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle.

• kinetic energy theorem

• Energy power theorem

• work energy theorem

Identify the type of collision.

• inelastic collision

• elastic collision

The diagram shows the force-time graph for a force acting on a 12.0-kg cart initially at rest on a frictionless surface. Calculate the impulse on the cart.