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.

Q: You and a friend can each pull with a force of 20 N. If you want to rip a rope in half, what is the…

A: Answer Tie the rope to a tree, and you both pull from the same end. Take advantage of the fact that…

Q: direction

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Q: I am playing tug-o-war with my three nephews.  The youngest in pulling with a force of 185 N.  The…

A: Answer is uploaded in 2nd step.

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A: Answer :  The force required to push must be 78.4N .

Q: Problem 9: A car has a mass of 1010 kg and is moving in a straight line at a speed of 56.1 km/h.

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Q: Find the mass of an automobile that weighs 18,241 N.

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Q: A 10 kg block on a frictionless surface is pushed to the right by a force of 70 N and to the left by…

A: Given data:  Mass (m) = 10 kg F1 = +70 N F2 = -30 N Required: The acceleration (a)

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Q: What average force is required to stop a 1800 kg car in 9.0 s if the car is traveling at 90 km/h ?

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Q: A train has a mass of 1.0x107 kg. If the locomotive can exert a constant traction  of 6.8x105 N. How…

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Q: you are standing on a train which begins to accelerate away at 4.50 m/s. If you have a mass of 70…

A: acceleration (a) = 4.50 ms2mass = 70 kg

Q: Weight of a body mass 6.0 kg is 60 N. What will be the weight of a boy of mass 65 kg. (a) kgf (b) N

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A: Distance, d=4.77 cm =0.0477 m Speed of ultrasound wave,v =1540 m/s

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A: Given: The mass of the sled is 65 kg. The acceleration of the sled is 1.2 m/s2.

Q: What net force is required to make a 15 kg box move at a constant speed of 2.0 m/s.

A: Given: Mass, m = 15 kg; constant speed, v = 2.0 m/s

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.