4. A roller-coaster car with a mass of 250 kg carries a 75 kg passenger and...

Question

Question

science physics

Answer 1

Answer #1

4) initial potential energy of the roller coaster =UA UA =Mgh M=250kg + 75=325 kg g=9.8. ha = 20m weplug the know values in t

Answer 2

Similar Homework Help Questions

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...
7.4 (P 7.41) 7.41 . A 350-kg roller coaster car starts from rest at point A...

7.4 (P 7.41) 7.41 . A 350-kg roller coaster car starts from rest at point A and slides down a frictionless loop-the-loop (Fig. P7.41). (a) How fast is this roller coaster car moving at point B? (b) How hard does it press against the track at point B? Figure P7.41 14.00 m 25.0 m 12.0 m 3.00 m
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...

1). the roller coaster car with a mass of 250 kg starts with an initial speed v0...

1). the roller coaster car with a mass of 250 kg starts with an initial speed v0 = 5.6 m/s at the top of the track . What is its speed (in m/s) at the lowest point of the track (which is 25m below the start point)? Keep 2 decimal places. 1 b) Recall what you learned in vertical circular motion. If the lowest part of the track is approximated as circular with a radius of 6.20 m, What is the...
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...
Loop the Loop Figure 1)A roller coaster car may be approximated by a block of mass...

Loop the Loop Figure 1)A roller coaster car may be approximated by a block of mass m. The car, which starts from rest, is released at a height h above the ground and slides along a frictionless track. The car encounters a loop of radius R as shown. Assume that the initial height h is great enough so that the car never loses contact with the track. Figure 1 of 1 위부

The roller coaster car has a mass of 850 kg including its passenger. It is released...

The roller coaster car has a mass of 850 kg including its passenger. It is released from rest at the top of the hill A Neglect friction, the mass of the wheels, and the size of the car. Take h_B = 19 m, rho_B = 9.5 m. h_C = 12 m and rho_c = 6 m. Part A Determine the minimum height h of the hill crest so that the car travels around both inside the loops without leaving the...
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...
A roller coaster of mass 80.0 kg is moving with a speed of 20.0 m/s at...

A roller coaster of mass 80.0 kg is moving with a speed of 20.0 m/s at position A as shown in the figure. The vertical height above ground level at position A is 200 m. Neglect friction. a. What is the total mechanical energy of the roller coaster at point A? EA = b. What is the total mechanical energy of the roller coaster at point B? EB = c. What is the speed of the roller coaster at point...

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...