You are testing a new roller coaster ride in which a car of mass m moves...
You are testing a new roller coaster ride in which a car of mass m moves around a vertical circle of radius R. In one test, the car starts at the bottom of the circle (point A) with initial kinetic energy Ki. When the car reaches the top of the circle (point B), its kinetic energy is Ki/4, and its gravitational potential energy has increased by Ki/2. What was the speed of the car at point A, in terms of g and R?
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You are testing a new roller coaster ride in which a car of mass
m moves...
12) (5 points) A roller coaster car moves around a vertical circle. At the bottom of...
12) (5 points) A roller coaster car moves around a vertical circle. At the bottom of the circle, the car experiences four times as much acceleration as at the top of the circle. Compared to its speed at the top of the circle, the speed of the car at the bottom of the circle is A) 4 times as great. B) 2.8 times as great. C) 1.4 times as great. D) 16 times as great. E) twice as great.
A car of mass 500. kg on a roller coaster ride is raised from the ground...
A car of mass 500. kg on a roller coaster ride is raised from
the ground (horizontal dotted line) to point A as shown in the
diagram above. When the car passes point A, its speed is 5.0 m/s,
and then it rolls freely through the rest of the ride with
negligible friction, passing points B, C, D and E. Note that point
D is the highest portion of a circular loop, and point E is the
lowest portion of...
A car in an amusement park roller coaster ride rolls without friction at the top of...
A car in an amusement park roller coaster ride rolls without friction at the top of a hill. The car begins at a height h from the top of a hill. A the bottom, the car then goes through a vertical loop where the car is upside down at the loop\'s top. If the radius of the loop is 20.0m, what is the minimum height h such that the car moves around the loop without falling off the track at...
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...
In the figure, a frictionless roller coaster car of mass m = 637 kg tops the...
In the
figure, a frictionless roller coaster car of mass m = 637 kg tops the first
hill with speed v0 = 19.3 m/s at
height h = 37.2 m. How much work
does the gravitational force do on the car from that point
to (a) point A, (b) point B, and (c) point C? If the gravitational
potential energy of the car-Earth system is taken to be zero
at C, what is its value when
the car is at...
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...
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...
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...
diagram with dierent numbers) 30レ A roller coaster with people on board has a total mass...
diagram with dierent numbers) 30レ A roller coaster with people on board has a total mass of 4500 kg and starts at a height of 22.0 meters with a speed of 2.00 ms. 50.0 on on the way to the botiom of the ride. (See Figure 5-13) What is its iniial potenSal envergy. in whole number kilojoules? (Since the unit is given in the question, do not put it in the answer box.) Question 16:(1 point) kJ of A roller...
12) (5 points) A roller coaster car moves around a vertical circle. At the bottom of the circle, the car experiences four times as much acceleration as at the top of the circle. Compared to its speed at the top of the circle, the speed of the car at the bottom of the circle is A) 4 times as great. B) 2.8 times as great. C) 1.4 times as great. D) 16 times as great. E) twice as great.
A car of mass 500. kg on a roller coaster ride is raised from
the ground (horizontal dotted line) to point A as shown in the
diagram above. When the car passes point A, its speed is 5.0 m/s,
and then it rolls freely through the rest of the ride with
negligible friction, passing points B, C, D and E. Note that point
D is the highest portion of a circular loop, and point E is the
lowest portion of...
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...
In the
figure, a frictionless roller coaster car of mass m = 637 kg tops the first
hill with speed v0 = 19.3 m/s at
height h = 37.2 m. How much work
does the gravitational force do on the car from that point
to (a) point A, (b) point B, and (c) point C? If the gravitational
potential energy of the car-Earth system is taken to be zero
at C, what is its value when
the car is at...
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...
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...
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...
diagram with dierent numbers) 30レ A roller coaster with people on board has a total mass of 4500 kg and starts at a height of 22.0 meters with a speed of 2.00 ms. 50.0 on on the way to the botiom of the ride. (See Figure 5-13) What is its iniial potenSal envergy. in whole number kilojoules? (Since the unit is given in the question, do not put it in the answer box.) Question 16:(1 point) kJ of A roller...
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