Warhill High

• SCIENCE 1001

• Module 4: Energy Topic 4 Application: Conservation of Mechanical Energy 1. Categorize each of the following as a conservative or non-conservative force: a. Gravitational force (conservative) b. Frictional force (non-conservative) c. Applied force (non-conservative) d. Electrostatic force (conservative) e. Tension force (non-conservative) 2. A bike rider approaches a hill at a speed of 10.5 m/s. The combined mass of the bike and the rider is 85.0 kg. The rider coasts up the hill. Assuming there is no friction, at what height will the bike come to a rest? KE=.5mv^2 =.5(85 kg)(10.5 m/s)^2 = 4686 J H=V^2/2g =(10.5 m/s)^2/(2*9.8 m/s^2) = 5.6 m