Pablo ties a small stone to the end of a rope and is spun in a horizontal circle. If the mass of the stone is 0.40 kg and that of the rope is 0.75 m. What is the largest speed that the stone can have if the rope will break when the tension is 260 N?

A ball on a string is swung in a vertical circle. The string has a length of 0.7m. The ball has a mass of 0.4kg and is traveling with a speed of 9.2m/s at the top of the circle. What is the tension in the string (in Newtons) when the ball is at the top of the circle?   Your Answer: Question 3 options:         Answer units

A roller coaster cart is moving over the top of a circular hill that has a diameter of 56 m. What is the fastest safe speed that the roller cart can go over the top of the hill? (that is, at what speed will the cart begin to lose contact with the track?). Assume a coefficient of friction of 0.7.

25. A new amusement park ride is shown in the diagram. 10 m C The mass of the small car, including its contents, is 400 kg. and the radius of the loop is 10 m. Assume that the track is frictionless and that no mechanism holds the car in contact with the track. (a) In order that the car stay on the track at B, what minimum velocity must it have at that point? (b) From what minimum height, h, must the car start from rest in order to do this? (c) is the mass of the car a factor in determining ? Explain. one over over a light, fric

Bri is riding a roller coaster and encounters a loop. She is traveling 7.5 m/s at the top of the loop. The top of the loop has a radius of curvature of 3.9 m. Find the force that the loop exerted on Bri's 51 kg body at the top of the loop. Round your final answer to 1 decimal place.

A 51 kg object is experiencing a net force of 250 N while traveling in a circle of radius 1.5 m. What is its velocity?

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The passengers in a roller coaster feel 42 % heavier than their true weight as the car goes through a loop with a 30 m radius of curvature.  What is the car's speed at the bottom of the loop?  Use g = 10 N/kg.  Hint:  How heavy some one feels is another name for normal force.  The problem therefore tells you the normal force.  If you know weight and normal force, you can determine centripetal acceleration.  You can substitute a value for mass if you wish.

A ball of mass m = 0.275 kg swings in a vertical circular path on a string L = 0.850 in long as in Figure P6.31. (a) What are the forces acting on the ball at any point on the path? (b) Draw force diagrams for the ball when it is at the bottom of the circle and when it is at the top. (c) If its speed is 5.20 m/s at the top of the circle, what is the tension in the string there? (d) If the string breaks when its tension exceeds 22.5 N, what is the maximum speed the ball can have at the bottom before that happens?

NASA uses a machine often called the "vomit comet" to mimic the effects of low gravity in space during astronaut training. The machine moves in circular arcs at a speed of v = 214 m/s. What is the radius the pilot must fly to create weightlessness as they go around the top of the circular arc? Give your answer in meters.