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2. In the figure, a stunt car driver negotiates the frictionless track...
1. A roller coaster has a 300 kg car. Assume the track is frictionless. a) The...
1. A roller coaster has a 300 kg car. Assume the track is frictionless. a) The car starts at a speed 20 m/s on a horizontal track. It then goes through a circular loop. What is the speed of the car when it is at the top of the loop, h = 10 m above the horizontal track? b) What is the normal force applied from the track at the point? Does this force point upward or downward? Assume the...
The figure below shows a roller-coaster car on a track. The car is fully loaded with...
The figure below shows a roller-coaster car
on a track. The car is fully loaded with passengers and has a total
mass of 440 kg. At point A, the car is at the lowest point in a
circular arc of radius r1 = 12.6 m. At point B, the car is at the
highest point of a circular arc of radius r2 = 15.8 m.
The figure below shows a roller-coaster car on a track. The car is fully loaded...
If you are hired to consult a stunt driver about the necessary velocity vo in which...
If you are hired to consult a stunt driver about the necessary velocity vo in which the car enters the loop and follow the whole looped track without falling. (a) What will be your estimate for the initial minimum velocity V, as function of radius R neglecting the drag friction on the car? (10 pts] (b) What is the velocity of the car at the top of the loop neglecting the drag friction on the car if the initial velocity...
If you are hired to consult a stunt driver about the necessary velocity vo in which...
If you are hired to consult a stunt driver about the necessary velocity vo in which the car enters the loop and follow the whole looped track without falling. (a) What will be your estimate for the initial minimum velocity v, as function of radius R neglecting the drag friction on the car? (10 pts] (b) What is the velocity of the car at the top of the loop neglecting the drag friction on the car if the initial velocity...
A small block of mass m slides along the frictionless loop the loop track shown below....
A small block of mass m slides along the frictionless loop the loop track shown below. If it starts from rest at point A, what is the speed of the block at point B? (v = squareroot (10 g R)) What is the net force acting on the block at point C? (Don't forget the gravitational force. (F = -mg (8i + j) At what height above the bottom should the block be released so that the normal force exerted...
WORK AND ENERGY The recently patented "Francis pile-driver" pounds piles into the ground by launching 15-kg...
WORK AND ENERGY
The recently patented "Francis pile-driver" pounds piles into the ground by launching 15-kg bowling balls from a spring loaded gun, up around a frictionless loop-de-loop of radius r = 8 m, and down onto the pile. When the spring is compressed by delta s = 2 m the bowling balls have a speed of 20 m/s at the top of the loop, as shown. (You may assume g = 10m/s^2.) Find the work done by the frictionless...
Recitation Work - 5 In order to get full credit, you need to show all your...
Recitation Work - 5 In order to get full credit, you need to
show all your work.
question 1.
A force Fx = cx^3 (c = 3.0 N/m^3) acts on an object with mass 40
kg that is sliding along a rough horizontal floor (x-axis) with
coefficient of kinetic friction of 0.2. A) What is the work done by
the force Fx on this object as it slides from x1 = 0.0 m to x2 =
6.0 m?
B) What...
Spare) A car with mass m is poised at the top of a frictionless track as...
Spare) A car with mass m is poised at the top of a frictionless track as shown in the figure. Assume a point mass for the car. (a) Find the tangential velocity of the car at a position of the circular track (making an2r angleの. (b) Find the position at which the car falls off the circular track in terms of e (c) Find the condition for the car to reach the top (point C) of the circular track
A 48.5-g toy car is released from rest on a frictionless track with a vertical loop...
A 48.5-g toy car is released from rest on a frictionless track with a vertical loop of radius R. The initial height of the car is h = 4.45R. (a) What is the speed of the car at the top of the vertical loop? (Use the following as necessary: R and g.) (b) What is the magnitude of the normal force acting on the car at the top of the vertical loop?
Problem 1 You are designing a roller coaster, shown in the figure below. An empty car...
Problem 1 You are designing a roller coaster, shown in the figure below. An empty car has a mass of 120 kg. The radius of the vertical loop in the track is 12.0 m and the bottom of the loop is 5.0 m above the ground. Assuming the roller coaster is frictionless, how high must the car initially climb above the ground (point A) such that the speed of the car is 25.0 m/s at the top of the loop...
1. A roller coaster has a 300 kg car. Assume the track is frictionless. a) The car starts at a speed 20 m/s on a horizontal track. It then goes through a circular loop. What is the speed of the car when it is at the top of the loop, h = 10 m above the horizontal track? b) What is the normal force applied from the track at the point? Does this force point upward or downward? Assume the...
The figure below shows a roller-coaster car
on a track. The car is fully loaded with passengers and has a total
mass of 440 kg. At point A, the car is at the lowest point in a
circular arc of radius r1 = 12.6 m. At point B, the car is at the
highest point of a circular arc of radius r2 = 15.8 m.
The figure below shows a roller-coaster car on a track. The car is fully loaded...
If you are hired to consult a stunt driver about the necessary velocity vo in which the car enters the loop and follow the whole looped track without falling. (a) What will be your estimate for the initial minimum velocity V, as function of radius R neglecting the drag friction on the car? (10 pts] (b) What is the velocity of the car at the top of the loop neglecting the drag friction on the car if the initial velocity...
If you are hired to consult a stunt driver about the necessary velocity vo in which the car enters the loop and follow the whole looped track without falling. (a) What will be your estimate for the initial minimum velocity v, as function of radius R neglecting the drag friction on the car? (10 pts] (b) What is the velocity of the car at the top of the loop neglecting the drag friction on the car if the initial velocity...
A small block of mass m slides along the frictionless loop the loop track shown below. If it starts from rest at point A, what is the speed of the block at point B? (v = squareroot (10 g R)) What is the net force acting on the block at point C? (Don't forget the gravitational force. (F = -mg (8i + j) At what height above the bottom should the block be released so that the normal force exerted...
WORK AND ENERGY
The recently patented "Francis pile-driver" pounds piles into the ground by launching 15-kg bowling balls from a spring loaded gun, up around a frictionless loop-de-loop of radius r = 8 m, and down onto the pile. When the spring is compressed by delta s = 2 m the bowling balls have a speed of 20 m/s at the top of the loop, as shown. (You may assume g = 10m/s^2.) Find the work done by the frictionless...
Recitation Work - 5 In order to get full credit, you need to
show all your work.
question 1.
A force Fx = cx^3 (c = 3.0 N/m^3) acts on an object with mass 40
kg that is sliding along a rough horizontal floor (x-axis) with
coefficient of kinetic friction of 0.2. A) What is the work done by
the force Fx on this object as it slides from x1 = 0.0 m to x2 =
6.0 m?
B) What...
Spare) A car with mass m is poised at the top of a frictionless track as shown in the figure. Assume a point mass for the car. (a) Find the tangential velocity of the car at a position of the circular track (making an2r angleの. (b) Find the position at which the car falls off the circular track in terms of e (c) Find the condition for the car to reach the top (point C) of the circular track
Problem 1 You are designing a roller coaster, shown in the figure below. An empty car has a mass of 120 kg. The radius of the vertical loop in the track is 12.0 m and the bottom of the loop is 5.0 m above the ground. Assuming the roller coaster is frictionless, how high must the car initially climb above the ground (point A) such that the speed of the car is 25.0 m/s at the top of the loop...
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