What speed

Q: This figure shows the loop-the-loop track for a smaller car. If the initial speed of the car is 4.0…

A: Use energy conservation and force balance equations

Q: A frictionless rollercoaster does a vertical loop with a radius of 6.0 m. What is the minimum speed…

A: Given Data : The radius of the loop is given as r = 6 m.

Q: A new roller coaster contains a loop-the-loop in which the car and rider are completely upside down.…

A: Given: R=13.2 m g=9.81 m/s

Q: An object is initially moving in uniform circular motion. The object is connected to an inelastic…

A: When an external force is applied to an object moving in a uniform circular motion, the radial…

Q: A student conducts an experiment in which a ball is spun in a vertical circle from a string of…

A: Given:-

Q: A 1 kg block is attached to vertical rod by means of two strings. When the system rotates about the…

A: Given : m = 1 kg T1 = 100 N g = 10 m/s2

Q: The small collar of mass m = 0.55 kg is released from rest at A and slides down the curved rod in…

A: Given m=0.55kg  B=0.76m h=1.25 In the question we using energy balance equation We have to find the…

Q: In her hand, a softball pitcher swings a ball of mass 0.255 kg around a vertical circular path of…

A: Analyze the following diagram. Since the force acting on the ball is not a conservative force, the…

Q: A ball attached to a string is swinged circularly in vertical plane as shown in figure. Given the…

A: Given(s): The mass of the ball, m=320 g=0.32 kg Radius, r=1.20 m

Q: A new roller coaster contains a loop-the-loop in which the car and rider are completely upside down.…

A: Given : Radius of a loop (r) = 13.2 m

Q: A stunt airplane flies in a vertical circular loop of radius r at a constant speed. When the…

A: If an object moves in circular motion it requires centripetal force which is provided by already…

Q: A roller-coaster car has a mass of 1210 kg when fully loaded with passengers. As the car passes over…

A:

Q: A 66 g ball is fastened to one end of a string 55 cm long and the other end is held fixed at point O…

A:

Q: A recently patented pile driver pounds piles into the ground by launching 15 kg bowling balls from a…

A: Given Data: The mass of a bowling ball is, m=15 kg The radius of a loop is, r=8 m The compression in…

Q: Chapter 06, Problem 049 GO In the figure, a car is driven at constant speed over a circular hill and…

A:

Q: You are designing the section of a roller coaster ride shown in the figure. Previous sections of the…

A: Given data: Speed of the train, v=10.7 m/s Height above the ground, h=37.5 m Acceleration at the top…

Q: At amusement parks, there is a popular ride where the floor of a rotating cylindrical room falls…

A: Radius of the room, R = 8.8 m Acceleration due to gravity, g = 9.8 m/s2 Coefficient of friction…

Q: A sphere rolling with an initial velocity of 9 m/s starts up a plane inclined 30 degrees with the…

A: Given that,velocity of bottom of plane:initial velocity, u=9 msangle of inclination,…

Q: A toy car, of mass 0.10 kg, is travelling along a track which contains a vertical circular loop of…

A:

Q: In the figure, a stunt car driver negotiates the frictionless track shown in such a way that the car…

A: Given Data : The mass of the car is given as m = 1800Kg. The radius of the circular track is given…

Q: u and your family take a road trip on a long holiday weekend. In a certain section of the trip where…

A:

Q: A car is idling at 450 rpm. When the light Turns Green, the crank shaft rotation speeds at a…

A: We'll firstly find the angular acceleration, and then the angular displacement using equations of…

Q: Jeff of the Jungle swings on a vine that is 7.20 m long. At the bottom of the swing, just before…

A: Given,

Q: An object weighing 15 N swings at the end of a rope that is 0.86 m long as a simple pendulum. At the…

A: The net force on the object will be the difference of the downwards and upward forces acting on it.…

Q: A skateboarder, with an initial speed of 2.7 m/sm/s, rolls virtually friction-free down a straight…

A: The acceleration is,

Q: You are designing the section of a roller coaster ride shown in the figure. Previous sections of the…

A: Given: The speed of train (v) = 10.7 m/s. Initial height of train (h) = 36.7 m.

Q: Problem 1: A small sphere of mass m = 400g is attached to the end of a cord of length 1.2m and set…

A: We need to calculate tension at different positions of the sphere revolving in a vertical circle.

Q: A puck of mass m = 49.0 g is attached to a taut cord passing through a small hole in a frictionless,…

A:

Q: If an object is moving in a circle at constant speed, the work done by the centripetal force will…

A: Work done on an object by force is the dot product of force and its displacement. Work done can be…

Q: The drawing shows a version of the loop-the-loop trick for a small car. The radius of the loop r =…

A:

Q: For the normal force in the drawing to have the same magnitude at all points on the vertical track,…

A:

Q: A giant wheel, 40 m in diameter, is fitted with a cage and platform on which a man can stand. The…

A:

Q: A roller coaster has a circular loop with a diameter (height) of 39 meters. When the coaster is…

A:

Q: A small ball with mass 0.50 kg moves in a vertical circle on the inside of a frictionless circular…

A: The given data:   The mass of the ball, m = 0.50 Kg The radius of the curvature, R = 0.80 m

Q: A new roller coaster contains a loop-the-loop in which the car and rider are completely upside down.…

A:

Q: In the game of tetherball, a ball is hung from a vertical pole via a 0.75m rope. The rope is allowed…

A: Solution: Given that L = 0.75 m angle = 30 dgree

Q: A 4.0 kg car is traveling around a vertical loop with a radius of 2 m. What is the minimum speed…

A:

Q: A roller-coaster car with mass 840 kg is launched from a huge spring with k = 31 kN/m into a…

A: Use conservation of energy to calculate the roller coasters velocity at the top of the loop.  spring…

Q: In the diagram below, a moving skier on top of a circular hill of radius R, = 62.0 m fees that his…

A: Skier's apparent weight (in multiples of mg). given,radius of hillRh=62 mradius of valley(Rv)=43.0…

Q: A child is playing with a car track, which has a loop of radius 14 cm as shown in the figure, when…

A:

Q: Graphing centripetal force vs. 1/(period "T")^2  yields a graph with a linear positive trend. What…

A: The given graph represents centripetal force versus 1/(period)2. The graph shows the centripetal…

Q: A projectile is shot directly away from Earth's surface. Neglect the rotation of the Earth. What…

A:

Q: A m= 500. kg Initial Velocity at point A = 1.5m/s

A: The initial velocity at point A is u = 1.5 m/s  The height of point A from the ground is h = 60 m…

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.