Energy possessed by a body due to its motion is called Kinetic Energy Gravitational Potential Energy Mechanical Energy Elastic potential Energy

A vehicle weighing 1000 kg goes downhill from 2000 feet to 1000 feet at a velocity of 60 mph. Which one of the statements below is true Potential energy remains the same while kinetic energy decreases to one fourth Potential energy increases to twice of its initial value O potential energy decreases to half Kinetic energy decreases to half

A person pushes a bookshelf across a level room. There is friction between the floor and thebookshelf. The work done by friction on the bookshelfa) is positiveb) is negativec) is zerod) depends on the speed

State the principle of conservation of energy.

A spring, whose equilibrium length is 2 m, is compressed to a length of 1 2  m when a force of 10 N is applied. Find the work done by the spring force to compress the spring to a length of 1 m

Which of these energies could be negative? Kinetic Energy Potential Energy Work None of the above All of the above KE and PE PE and Work

A stone is propelled vertically off the ground. After it is released, which of the following are true? It’s total mechanical energy increases It’s total energy is proportional to its distance off the ground It’s kinetic energy decreases It’s gravitational energy increases

3) The figure below illustrates a skier who is skiing on a large frictionless spherical ball of snow. The skier can be treated as a point-like object. The skier starts at the top of the ball with very little speed and picks up speed while traveling along the surface of the snow. During this time, the only forces acting on the skier are the gravitational force applied by the Earth and the normal force applied by the snow. At the moment the radial line extending from the skier to the center of the ball defines an angle a with respect to a vertical line, the skier is about to lose contact with the ball. Determine the value of a.

Question 8 Questions #8-9 start with the same description. A 1,100 kg horse is walking at 2.0 m/s. What type of energy is being described? Your answer: O chemical O elastic O gravitational O kinetic

Please answer question 12 and provide all work needed.