In an amusement park, a 250 kg roller coaster reaches point A with velocity of 8 m/sec. What is its velocity at point B if the work done by friction of the track is 3000 joules during this displacement from A to B?
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In an amusement park, a 250 kg roller coaster reaches point A
with velocity of 8...
90 m (15 points) A roller coaster ride at an amusement park lifts a car of...
90 m (15 points) A roller coaster ride at an amusement park lifts a car of mass 700 kg to point A at a height of 90 m above the lowest point on the track, as shown above. The car starts from rest at point A. rolls with negligible friction down the incline and follows the track around a loop of radius 20 m. Point B. the highest point on the loop, is at a height of 50 m above...
An engineer is designing a roller coaster for an amusement park. It is required that when...
An engineer is designing a roller coaster for an amusement park. It is required that when the car goes over the top of a curved vertical section of trackat 6.0 m s 1 passengers feel "weightless" - that is, they feel they are "floating" out of their seats. 4 Draw a diagram that shows the forces acting on a passenger at the top of the track. (a) (b) Calculate the radius of curvature needed for this section of track.
4. A roller-coaster car with a mass of 250 kg carries a 75 kg passenger and...
4. A roller-coaster car with a mass of 250 kg carries a 75 kg passenger and starts from rest from a point 20 m above the ground. At point C, it is 15 m above the ground. A. What is the initial potential energy of the car (in kJ) at point A? - 75 kg 250. kg B. What is the potential energy at point B? C. If the initial kinetic energy was zero and the work done against friction...
A 540 kg roller coaster has a speed of 21.0 m/s as it reaches the lowest...
A 540 kg roller coaster has a speed of 21.0 m/s as it reaches the lowest point on the track, which is at the bottom of a vertical curve with a radius of 13.0 m. What is the force of the track on the vehicle at this point?
1. A roller coaster at an amusement park has a dip that bottoms out in a...
1. A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to twice her weight as she goes through the dip. If r = 28.7 m, how fast is the roller coaster traveling at the bottom of the dip? 2. A 0.21-kg ball on a stick is whirled on a vertical circle at a...
A 200-kg roller coaster reaches the top of the steepest hill with a speed of 5.60...
A 200-kg roller coaster reaches the top of the steepest hill with a speed of 5.60 km/h. It then descends the hill, which is at an angle of 25° and is 58.0 m long. What will its kinetic energy be when it reaches the bottom? Assume µk = 0.10. A boy pulls a 20.0-kg box with a 130-N force at 33° above a horizontal surface. If the coefficient of kinetic friction between the box and the horizontal surface is 0.29...
A new roller coaster at an amusement park requires individuals to be at least? 4' 8"...
A new roller coaster at an amusement park requires individuals to be at least? 4' 8" ?(56 inches) tall to ride. It is estimated that the heights of? 10-year-old boys are normally distributed with ?=53.0 inches and ?=4 inches. a. What proportion of? 10-year-old boys is tall enough to ride the? coaster? b. A smaller coaster has a height requirement of 50 inches to ride. What proportion of? 10-year-old boys is tall enough to ride this? coaster? c. What proportion...
Problem #1) remember nach a A roller-coaster reaches a velocity of 30 meters/sec. It also has...
Problem #1) remember nach a A roller-coaster reaches a velocity of 30 meters/sec. It also has an acceleration of 10 meters/sec in the direction of motion. If the radius of curvature at this point is 50 meters, Calculate the acceleration of the roller-coaster at this point.
ar = 10 m The roller coaster in Figure P6.36 starts with a velocity of 15.7...
ar = 10 m The roller coaster in Figure P6.36 starts with a velocity of 15.7 m/s. One of the riders is a small girl of mass 36 kg. At points B and C, the track is circular with the radii of curvature given in the figure. The heights at points A, B, and C are ha= 24.15 m, hB = 34.1 m, and hc=0 m. You may assume the track is frictionless. Find the velocity of the roller coaster...
90 m (15 points) A roller coaster ride at an amusement park lifts a car of mass 700 kg to point A at a height of 90 m above the lowest point on the track, as shown above. The car starts from rest at point A. rolls with negligible friction down the incline and follows the track around a loop of radius 20 m. Point B. the highest point on the loop, is at a height of 50 m above...
An engineer is designing a roller coaster for an amusement park. It is required that when the car goes over the top of a curved vertical section of trackat 6.0 m s 1 passengers feel "weightless" - that is, they feel they are "floating" out of their seats. 4 Draw a diagram that shows the forces acting on a passenger at the top of the track. (a) (b) Calculate the radius of curvature needed for this section of track.
4. A roller-coaster car with a mass of 250 kg carries a 75 kg passenger and starts from rest from a point 20 m above the ground. At point C, it is 15 m above the ground. A. What is the initial potential energy of the car (in kJ) at point A? - 75 kg 250. kg B. What is the potential energy at point B? C. If the initial kinetic energy was zero and the work done against friction...
Problem #1) remember nach a A roller-coaster reaches a velocity of 30 meters/sec. It also has an acceleration of 10 meters/sec in the direction of motion. If the radius of curvature at this point is 50 meters, Calculate the acceleration of the roller-coaster at this point.
ar = 10 m The roller coaster in Figure P6.36 starts with a velocity of 15.7 m/s. One of the riders is a small girl of mass 36 kg. At points B and C, the track is circular with the radii of curvature given in the figure. The heights at points A, B, and C are ha= 24.15 m, hB = 34.1 m, and hc=0 m. You may assume the track is frictionless. Find the velocity of the roller coaster...
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