ssignment 11 Use the following information to answer the following question. A 162 g hockey puck is shot at a speed of 42.7 m/s. After it has traveled 200 m, it has slowed to a speed of 34.2 m/s. Using a work and energy argument or a kinematics and dynamics argument, calculate the coefficient of kinetic friction between the ice and the puck.

A 17 g bullet is accelerated in a rifle barrel81.5 cm long to a speed of 846 m/s.Use the work-energy theorem to find theaverage force exerted on the bullet while it isbeing accelerated.Answer in units of N.

A brick lies perilously close to the edge of the flat roof of a building. The roof edge is 50 ft above street level, and the brick has 260.0 J of potential energy with respect to street level. Someone edges the brick off the roof, and it begins to fall. What is the brick’s kinetic energy when it is 35 ft above street level? What is the brick’s kinetic energy the instant before it hits the street surface?

The Super Sled travels with an initial kinetic energy of 3369 J horizontally and to the right along a frictionless flat surface, initially at a height of zero (initial gravitational potential energy = 0). The driver briefly engages the rocket over a distance (Ax) of 2.000 m, pushing the sled with a force of 400.0 N over that distance. The rocket is then turned off. The sled then goes up an inclined surface with a rough surface. The coefficient of kinetic friction on the incline is uk. At the top of the incline, the sled reaches a height h = 1.500 m above the ground where the surface becomes flat and frictionless again. The sled (including the rocket and driver) has a total mass of 87.00 kg. (Notes: assume that g = 9.810 m/s² , and that the mass of fuel used by the rocket is negligible. Do not use scientific notation). After &, rocket rocket Before propulsion propulsion starts ends rough inclined surface rocket frictionless engaged coefficient of kinetic friction = H surface h = 1.500 m…