Velomobile Characteristics Mass: 29 kg in addition to the rider Aerodynamic drag: F, = 0.0492 V* (Newtons) Rolling drag coefficient: C = 0.01 Rolling drag: F, = C,,N Mountain Bike Characteristics Mass: 10 kg in addition to the rider Aerodynamic drag: F, = 3.309 V° (Newtons) Rolling drag coefficient: C = 0.005 Rolling drag: F, = CN Perform the following assuming the bike and velomobile are on flat terrain. (a) Draw a free body diagram for each Neglecting the rotational energy of the wheels, determine: (b) The power required for each to travel 24 and 32 kph (about 15 and 20 mph) (c) The velocity with a power input of 150 W (d) The velocity going up a 6% grade with a power input of 150 W (you will also need a new free body diagram) (e) The work input required for each on a 12 km trip traveling 32 kph with 12 full stops and accelerations back up to speed. (f) Calculate the amount of calories burned. Assume the human body is 25% efficient.

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.