HSC Physics. Momentum and Kinetic Energy
/A tutorial sheet on momentum and kinetic energy is given below.
- Two moving objects collide and join together. Is the total kinetic energy conserved in this collision?
- A pellet of mass 100 g moves at 20 m s-1 to the east. A clay block of mass 300 g moves at 5 m s-1 to the west. A collision occurs and the objects join together. Find the kinetic energy of the combined mass after the collision.
- The kinetic energy of an object is K. Find the new kinetic energy of this object if its mass is doubled and its momentum is halved.
- A stationary nucleus has a mass M. It emits a small particle of mass m at a speed v. Find the ratio of the kinetic energy of the small particle to that of the remaining nucleus.
