4. Consider a country road that resembles a roller coaster track. Why is it that the...
4. Consider a country road that resembles a roller coaster track. Why is it that the pavement at the bottom of the hills needs to be repaired before the pavement at the top of the hills?
Homework Answers
It is necessary that the pavement at the bottom of the hills be repaired first because to go to the top of the hills, one needs to travel through the bottom first.
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4. Consider a country road that resembles a roller coaster
track. Why is it that the...
One portion of the track of a toy roller coaster is bent into a full vertical...
One portion of the track of a toy roller coaster is bent into a full vertical circle of radius R. A small cart rolling on the track enters the bottom of the circle with a speed √gR. Show that this cart will fall off the track before it reaches the top of the circle, and find the (angular) position at which the cart loses contact with the track.
The Outlaw Run roller coaster in Branson, Missouri, features a track that is inclined at 84...
The Outlaw Run roller coaster in Branson, Missouri, features a track that is inclined at 84 ∘ below the horizontal and that spans a 49.4-m (162 ft) change in height. A.) If the coefficient of friction for the roller coaster is μk=0.30, what is the magnitude of the friction force on a 1800-kg coaster train? B.) How much work is done by friction during the time the coaster train travels along the incline? C.) What is the speed of the...
A The length of the roller coaster track is 100 ft and the elevation change of...
A The length of the roller coaster track is 100 ft and the elevation change of the track from point A, at the bottom of the track, to point B, at the top of the track is 20 ft. The roller coaster car, including the passengers, weights 1,200 lb, and the force of friction between the car and the tracks is 20 lb. The speed at point A is 45 ft/s. Determine the speed at point B. B Solve the...
1.Consider a roller coaster (m = 219.0 kg) at the lowest point on its track, where...
1.Consider a roller coaster (m = 219.0 kg) at the lowest point on its track, where the radius of curvature is r = 20.0 m. If the velocity of the roller coaster is 16.0 m/s, calculate: (g=9.80 m/s2). Find the centripetal force. 2.Consider a roller coaster (m = 208.0 kg) at the lowest point on its track, where the radius of curvature is r = 24.0 m. If the velocity of the roller coaster is 23.0 m/s, calculate: (g=9.80 m/s2)....
A roller-coaster track has six semicircular "dips" with different radii of curvature. The same roller-coaster cart...
A roller-coaster track has six semicircular "dips" with different
radii of curvature. The same roller-coaster cart rides through each
dip at a different speed.For the different values given for the radius of curvatureR and speed v,
rank the magnitude of the force of the roller-coaster track on the
cart at the bottom of each dip.A) R=60m v=16 m/s B) R=15m v= 8m/s C) R=30m v= 4m/s D) R=45m v=
4m/s E) 30m v= 16 m/s F) R= 15m v=12 m/s
A roller coaster is passing through the very bottom of a semicircular section of track. (a)...
A roller coaster is passing through the very bottom of a semicircular section of track. (a) The FBD at right shows the forces acting on the cart at the bottom of the track, but the vectors are not necessarily drawn to scale. Which of the two forces must be larger? Explain in 1 - 2 sentences without equations or math, using what you know about circular motion and N2L. (b) The magnitude of the normal force acting on the coaster...
The force of contact between the bottoms of some roller-coaster riders and their seats vanishes just...
The force of contact between the bottoms of some roller-coaster riders and their seats vanishes just at the moment the are at the top of a loop, with radius 18.0m. What is the speed of the roller coaster at the bottom of this loop if there is no friction with the track?
The Outlaw Run roller coaster in Branson, Missouri, features a track that is inclined at 79...
The Outlaw Run roller coaster in Branson, Missouri, features a track that is inclined at 79 ? below the horizontal and that spans a 49.4-m (162 ft) change in height. Part A If the coefficient of friction for the roller coaster is ?k=0.33, what is the magnitude of the friction force on a 1600-kg coaster train? Express your answer to two significant figures and include appropriate units. Part B How much work is done by friction during the time the...
Revie The Outlaw Run roller coaster in Branson, Missouri, foatures a track that is inclined at...
Revie The Outlaw Run roller coaster in Branson, Missouri, foatures a track that is inclined at 77 height below the horizontal and that spans a 49 4-m (162 ft) change in Part A If the coefficient of friction for the roller coaster is 0.29. what is the magnitude of the friction force on a 1600 kg coaster train? Express your answer to two significant figures and include appropriate units. HAO? 1023 N. Submit Previous Answers Request Answer * Incorrect; Try...
Problem 1: Looping. The looping of a roller coaster has the radius R. The roller coaster...
Problem 1: Looping. The looping of a roller coaster has the radius R. The roller coaster starts at rest in height H over the deepest point of the looping (as shown in the figure). Neglect friction and consider the roller coaster as a mass point of mass m. Q.1) Express the total energy of the body. The reference point for the potential energy is at the center of the loop. Q.2) Find the speed of the body at the top...
A roller-coaster track has six semicircular "dips" with different
radii of curvature. The same roller-coaster cart rides through each
dip at a different speed.For the different values given for the radius of curvatureR and speed v,
rank the magnitude of the force of the roller-coaster track on the
cart at the bottom of each dip.A) R=60m v=16 m/s B) R=15m v= 8m/s C) R=30m v= 4m/s D) R=45m v=
4m/s E) 30m v= 16 m/s F) R= 15m v=12 m/s
A roller coaster is passing through the very bottom of a semicircular section of track. (a) The FBD at right shows the forces acting on the cart at the bottom of the track, but the vectors are not necessarily drawn to scale. Which of the two forces must be larger? Explain in 1 - 2 sentences without equations or math, using what you know about circular motion and N2L. (b) The magnitude of the normal force acting on the coaster...
Revie The Outlaw Run roller coaster in Branson, Missouri, foatures a track that is inclined at 77 height below the horizontal and that spans a 49 4-m (162 ft) change in Part A If the coefficient of friction for the roller coaster is 0.29. what is the magnitude of the friction force on a 1600 kg coaster train? Express your answer to two significant figures and include appropriate units. HAO? 1023 N. Submit Previous Answers Request Answer * Incorrect; Try...
Problem 1: Looping. The looping of a roller coaster has the radius R. The roller coaster starts at rest in height H over the deepest point of the looping (as shown in the figure). Neglect friction and consider the roller coaster as a mass point of mass m. Q.1) Express the total energy of the body. The reference point for the potential energy is at the center of the loop. Q.2) Find the speed of the body at the top...
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