Answer Happy

partB)
Part A, Definitions / Descriptions. Answer all. 1. Work-PE theorem 2. Work-KE theorem Conservation of mechanical energy. Conservation of energy Work Potential energy Kinetic energy Friction I Displacement? What is the difference between base and 3. 4. 5. 6. 7. 8. 9. 10. derived quantities? a (m/s²) as O -as 4. The figure four disks ar cord loops of force of mag attached. Th are T1 = 88.2 What are the C, and (d) dis
Part B, Calculations, Answer any 4. 1. A baseball player with mass m = 79 kg, sliding into second base, is retarded by a frictional force of magnitude 470 N. What is the coefficient of kinetic friction between the player and the ground? 2. A 1.50 kg snowball is fired from a cliff 15 m high. The snowball's initial velocity is 14.0 m/s, directed 41° above the horizontal. (a) How much work is done on the snowball by the gravitational force during its flight to the flat ground below the cliff? (b) What is the change in the gravitational potential energy of the snowball- Earth system during the flight? (c) If that gravitational potential energy is taken to be zero at the height of the cliff, what is its value when the snowball reaches the ground? 3. The figure below gives the acceleration of a 2.00 kg particle as an applied force F₂ moves it from rest along an x axis from x = 0 to x = 9.0 m. The scale of the figure's vertical axis is set by a, = 6.0 m/s². How much work has the force done on the particle when the particle reaches