4. The bicycle alone has a mass of 10kg. A person pushes the bicycle with a force of 75 N [N] at a constant speed. Recall Newton's first law of motion. a) Name The Four Forces Acting On The Bicycle b) Draw a FBD of the bicycle. c) Find the input work done by a person pushing the bicycle for a distance of 200 m. d) Find the negative work done by the force of friction. TVO ILC SPH4C Lesson 13 Lesson 13 Portfolio 888 44 F4 F5 F6 F7 DII FB F9 $ % & SK 3 4 5 6 8 9 E R T Y U D F G H K C V B N MLesson 15 Portfolio A. When a 50.0 kg skier (initially at rest) skis down a ramp located on Mars (where the acceleration due to gravity is 3.711 m/s2) from a vertical height of 2.00 m, she attains a speed of 3.00 m/s. a) What is the skier's total mechanical energy at the top of the ramp? b) What is the skier's total mechanical energy at the bottom of the ramp? c) What Is The Percent Efficiency Of The Ramp? I B. What is the cost of operating a 100W light bulb 4 hours a day for 6 days if the price of electrical energy is 5c/kWh? C. How much power does Daniel produce if he transforms 2.4KJ of chemical energy (in pizza that he ate that day) into kinetic energy and thermal energy in 12.5s? TVO ILC SPH4C Lesson 15 Assessment questions F3 F4 44 F6 F7 DII F5 F8 F9 & 13 4 5 8 9 E R T Y U D F G H K