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: Two blocks each weighing 25 N are connected to the ends of a light string which is passed over a…

A: Solution: given that m1=m2 = 25 kg

Q: A 20 kg block lies on a smooth ramp that is inclined at 35°. What is the force, paralle to the ramp,…

A:

Q: A 3 kg box is displaced at a rate of 5 m/s. How much force is required to stop the box in 0.8…

A: The acceleration is given by  a =v - ut where,  v is the final velocity, u is the initial velocity,…

Q: The weight of a body does not produce any moment of force

A: Moment of force = torque = r̅ ×F̅

Q: direction

A: The diagram shown below represent the situation given in the problem. Therefore writing the…

Q: The driver of a Bugatti Veyron experiences a force of magnitude 792 N while accelerating from rest…

A:

Q: A particle acted upon by a balanced force system has no A velocity B displacement C force D none E…

A: If a particle is acted upon by a balanced force system then the net force acting on the particle is…

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.

Q: What is the magnitude of the net force needed to bring a 2085 kg car to rest from 25.6 m/s in 9.3…

A: Solution: Given that mass m= 2085 kg vinitial = 25.6 m/s time t = 9.3 s to find the force required

Q: A horizontal force of 729 N is needed to overcome the force of static friction between a level floor…

A: Given: The applied force is 729 N. The coefficient of kinetic friction is 0.08. The mass of the…

Q: A picture with a mass of 0.30kg is hung from a wall. The single wire that the picture is suspended…

A:

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.4 m/s2. If the river is…

A:

Q: The rock hits the bad guy's face with a velocity of 45 m/s. If the rock is in contact with his face…

A: Given, velocity v = 45 m/s  Time = 0.05 s final velocity, v'=40 m/s

Q: A rope 17 cm is suspended between two hooks, 13 cm apart and at the same level. What is the pull on…

A:

Q: What will be the weight of a boy of mass

A: Given; Body having mass= 5kg is 50 NFind weight of a boy having mass 50 kg  a. kgf   b. N

Q: Consider pushing a lawn mower. Imagine that the lawn mower's handle was angled downward from the…

A: mass of lawn mower (m) = 23.4 kg Applied pushing force (F) = 232.5 N coefficient of friction (μ) =…

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.51 m/s2. If the river is…

A: Initial velocity = 0 msAcceleration (a) = 1.51 ms2Force (F) = 0.79 N

Q: A crate with a mass of 30 kg rests on a floor. On top of the crate stands a 45-kg girl. What is the…

A:

Q: A toy airplane has mass 1.5 kg and can produce a thrust of 5.0 N from the engine and propeller. It…

A:

Q: You are pushing a 40 kg sled across some snow with a coefficient of friction of 0.2. How much force…

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.

A:

Q: calculate the friction force if the block is at rest

A: Given Data: The forces are given as, F1=10 NF2=20 NF3=5 N The angle of inclination is, θ=37°   The…

Q: A grocery bag can withstand 300 N of force before it rips apart. How many kilograms of apples can it…

A:

Q: Solve this question in detail. Solution must be in Handwritten format only. Include free body…

A:

Q: A shopper in a supermarket pushes a loaded cart with a horizontal force of 15.0 N. The cart has a…

A:

Q: A vendor pulls a 250 N cart filled with pop cases so that it rolls along a level floor where the…

A:

Q: An advertisement claims that a particular automobile can “stop on a dime.” What net force would be…

A:

Q: Part C What is the magnitude of the acceleration? Express your answer in meters per second squared.…

A:

Q: How much force is required to bring a car of mass 1451 kg, initially traveling at 16.7 m/s, to rest…

A: Given  Mass of car  m = 1451 kg  Initial speed of car u = 16.7 m/s  Final speed of car  v = 0 m/s…

Q: A soccer player starts from rest and accelerates forward, reaching a velocity of 9.00 m/s in 3.00 s.…

A: The equation of motion is, v = u + at9m/s =0+a3.0sa=3m/s2

Q: Consider a 3 kg block of uranium modeled as an array of balls connected by springs. What is the mass…

A:

Q: What will be the weight of a boy of mass

A: Given; Weight of a body mass;   ⇒2 kg=20NWhat will be the weight of a boy of mass 42 kg ?

Q: How much force must the floor apply to hold up a 100 kg man carrying a 25 kg boy on his shoulders?

A:

Q: How much tension must a cable withstand if it is used to accelerate a 12 Kg box at 1.2 m/s2? Assume…

A:

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

A:

Q: A parachute has the same mass when it is in a pack and when it is spread out, but when the parachute…

A: The mass in both the given cases is identical for the parachute. When the parachute is not spread…

Q: A 1.0 kg wood block is pressed against a vertical wood wall by a 12 N force as shown. If the block…

A:

Q: Two blocks rest on frictionless inclines  and are connected by a lightweight string that passes over…

A:

Q: A mountain climber, is hanging between 2 cliffs by a rope. She weighs 600 N. Find the tensions in…

A: As there is no mention of angles made by rope with both cliff , I will assume that the angle made by…

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.