You are cycling at a constant speed of 11.0 m/s on a level road. (b) How...
You are cycling at a constant speed of 11.0 m/s on a level road.
(b) How much additional power is required to maintain this speed up a hill inclined at 3.00° with the horizontal? Assume the combined mass of you and your bicycle is 52.0 kg. If you need a value for the acceleration due to gravity, use g = 9.80 m/s2.
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You are cycling at a constant speed of 11.0 m/s on a level
road.
(b) How...
You are cycling at a constant speed of 10.0 m/s on a level road. (a) If...
You are cycling at a constant speed of 10.0 m/s on a level road. (a) If the net resistive force acting against you from things like air resistance is 32.0 N, what is your power output as you pedal? (b) How much additional power is required to maintain this speed up a hill inclined at 3.00° with the horizontal? Assume the combined mass of you and your bicycle is 58.0 kg. If you need a value for the acceleration due...
A bicyclist maintains a constant speed of 4.00 m/s up a hill that is inclined at...
A bicyclist maintains a constant speed of 4.00 m/s up a hill that is inclined at 10.0 degrees with the horizontal. Calculate the work done by the person and the work done by gravity if the bicycle moves a distance of 19.0 m up the hill. The combined mass of the rider and the bike is 88.0 kg. 1) Calculate the work done by gravity. 2) Calculate the work done by the person.
Problem 40 A bicyclist maintains a constant speed of 4.00 m/s up a hill that is...
Problem 40 A bicyclist maintains a constant speed of 4.00 m/s up a hill that is inclined at 10.0 with the horizontal. Calculate the work done by the person and the work done by gravity if the bicycle moves a distance of 19.0 m up the hill. The combined mass of the rider and the bike is 86.0 kg. 1) Calculate the work done by gravity. (Express your answer to three significant figures.) kJ Submit You currently have 2 submissions...
QUESTION 1 A Mercedes-Benz 300SL, mass = 1,731 kg, is parked on a road that rises...
QUESTION 1 A Mercedes-Benz 300SL, mass = 1,731 kg, is parked on a road that rises above the horizontal 11 degrees. What is the magnitude of the normal force in N with 3 significant figures? (acceleration due to gravity = g =9.80 m/s-, down) QUESTION 2 A Mercedes-Benz 300SL, mass = 1,683 kg, is parked on a road that rises above the horizontal 19 degrees. What is the magnitude of the static frictional force that the ground exerts on the...
A vehicle of mass 2000 kg has a constant resistance to motion of 3000 N. The...
A vehicle of mass 2000 kg has a constant resistance to motion of
3000 N. The maximum speed of the vehicle, when travelling on a
horizontal road, is 120 km/hour. Find the acceleration of the car
when it is travelling at a speed of 50 km/hour up a hill inclined
at an angle of 3o to the horizontal, with the engine
operating at maximum power (assume the resistance to motion
remains unchanged whether the car is travelling uphill or
horizonally...
QUESTION 9 To maintain a constant speed, the force provided by a car's engine must equal...
QUESTION 9 To maintain a constant speed, the force provided by a car's engine must equal the drag force plus the force of friction of the road (the rolling resistance). What is the drag force at 57.2 MPH for a Hummer H27 (Drag area for Hummer is 2.44 m2 and look up Table 5.2, chap-5 for the drag coefficient) Express your answer in N with 3 significant figures. QUESTION 10 Calculate the terminal velocity a spherical rain drop, diameter 4.06...
A bicyclist is coasting straight down a hill at a constant speed. The mass of the...
A bicyclist is coasting straight down a hill at a constant speed. The mass of the rider and bicycle is 89.0 kg, and the hill is inclined at 13.0° with respect to the horizontal. Air resistance opposes the motion of the cyclist. Later, the bicyclist climbs the same hill at the same constant speed. How much force (directed parallel to the hill) must be applied to the bicycle in order for the bicyclist to climb the hill? Number Units
Two bicycle tires are set rolling with the same initial speed of 4.00 m/s along a...
Two bicycle tires are set rolling with the same initial speed of 4.00 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 psi and goes a distance of 19.0 m ; the other is at 105 psi and goes a distance of 92.8 m . Assume that the net horizontal force is due to rolling friction only and take the...
Two bicycle tires are set rolling with the same initial speed of 3.10 m/s along a...
Two bicycle tires are set rolling with the same initial speed of 3.10 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 psi and goes a distance of 19.0 m ; the other is at 105 psi and goes a distance of 92.5 m . Assume that the net horizontal force is due to rolling friction only and take the...
Two bicycle tires are set rolling with the same initial speed of 3.20 m/s along a...
Two bicycle tires are set rolling with the same initial speed of 3.20 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 psi and goes a distance of 18.3 m ; the other is at 105 psi and goes a distance of 93.1 m . Assume that the net horizontal force is due to rolling friction only and take the...
Problem 40 A bicyclist maintains a constant speed of 4.00 m/s up a hill that is inclined at 10.0 with the horizontal. Calculate the work done by the person and the work done by gravity if the bicycle moves a distance of 19.0 m up the hill. The combined mass of the rider and the bike is 86.0 kg. 1) Calculate the work done by gravity. (Express your answer to three significant figures.) kJ Submit You currently have 2 submissions...
QUESTION 1 A Mercedes-Benz 300SL, mass = 1,731 kg, is parked on a road that rises above the horizontal 11 degrees. What is the magnitude of the normal force in N with 3 significant figures? (acceleration due to gravity = g =9.80 m/s-, down) QUESTION 2 A Mercedes-Benz 300SL, mass = 1,683 kg, is parked on a road that rises above the horizontal 19 degrees. What is the magnitude of the static frictional force that the ground exerts on the...
A vehicle of mass 2000 kg has a constant resistance to motion of
3000 N. The maximum speed of the vehicle, when travelling on a
horizontal road, is 120 km/hour. Find the acceleration of the car
when it is travelling at a speed of 50 km/hour up a hill inclined
at an angle of 3o to the horizontal, with the engine
operating at maximum power (assume the resistance to motion
remains unchanged whether the car is travelling uphill or
horizonally...
QUESTION 9 To maintain a constant speed, the force provided by a car's engine must equal the drag force plus the force of friction of the road (the rolling resistance). What is the drag force at 57.2 MPH for a Hummer H27 (Drag area for Hummer is 2.44 m2 and look up Table 5.2, chap-5 for the drag coefficient) Express your answer in N with 3 significant figures. QUESTION 10 Calculate the terminal velocity a spherical rain drop, diameter 4.06...
A bicyclist is coasting straight down a hill at a constant speed. The mass of the rider and bicycle is 89.0 kg, and the hill is inclined at 13.0° with respect to the horizontal. Air resistance opposes the motion of the cyclist. Later, the bicyclist climbs the same hill at the same constant speed. How much force (directed parallel to the hill) must be applied to the bicycle in order for the bicyclist to climb the hill? Number Units
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