**SEE FIGURE: http://www.webassign.net/ncsuplsemech2/8-post-006a.gifNote: g = 32 ft/s2.Part 1 - Estimate(a) Estimate the maximum speed a rider might have at location .16 m/s(b) For the speed you estimated in part (a), using Conservation of Energy, determine the maximum height the rider can rise up to as he goes up the vert.13.05 mPart 2 - Calculations(c) For the rest of this problem consider just the motion of the center of mass of the rider. Consider a standard half-pipe with h = 13...
QUESTION 10 Tony Hawk is skating through a half-pipe with a radius of 4 m. Initially he is in a crouched position with his center of mass 0.5 m above the surface of the half-pipe. He starts from rest with his center of mass a height of 3 m above the base of the half-pipe and experiences no loss of energy from friction as he moves. At the bottom of the half-pipe he stands up and lifts his arms into...
2. A 40kg girl is running at a constant speed of 3.6m/s on a straight path toward the edge of an Ice skating ring. At the edge of the ring she jumps on a skateboard (originally at rest). a) What is the mass of the skateboard if the final speed of Sara and the skateboard is observed to be 2.7 m/s? b) Find the ratio of the final to the initial kinetic energy. K.EdK.E.
State the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex, which he invented and after working up a high speed on his skateboard, would collide with some object. In this way, he got a gut feel for the physical properties of collisions and succeede3d in combining his two passions. On one occasion, the Skate, with a mass of 119 kg, including his...
A carnival merry-go-round has a large disk-shaped platform of mass 120 kg that can rotate about a center axle. A 60- kg student stands at rest at the edge of the platform 4.0 m from its center. The platform is also at rest. The student starts running clockwise around the edge of the platform and attains a speed of 2.4 m/s relative to the ground. A) Determine the rotational velocity of the platform. B) Determine the change of kinetic energy...
A roundabout is a type of playground equipment involving a large flat metal disk that is able to spin about its center axis. A roundabout of mass 120kg has a radius of 1.0m is initially at rest. A child of mass 43kg is running toward the edge of the roundabout (meaning, running on a path tangent to the edge) at 2.7 m/s and jumps on. Once she jumps on the roundabout, they move together as a single object. Assume the...
A roundabout is a type of playground equipment involving a large flat metal disk that is able to spin about its center axis. A roundabout of mass 120kg has a radius of 1.0m is initially at rest. A child of mass 43kg is running toward the edge of the roundabout (meaning, running on a path tangent to the edge) at 2.7 m/s and jumps on. Once she jumps on the roundabout, they move together as a single object. Assume the...
A hyperon approaches you in the lab at 0.80c when it emits a lambda particle at 0.070c relative to the hyperon in the direction away from you. What is the speed of the lambda particle relative to you? Determine the relativistic kinetic energy of an electron moving at 0.40c. An electron has a speed of 0.99c. What is its kinetic energy? If 0.3kg is expended during a nuclear reaction, how much total energy is given off? The total energy of...
(0) U 2 An 85 kg skateboarder takes a running jump onto his Skateboard, which has a mass of 8.0 kg and is initially at rest. After he lands on the skateboard, the speed of the board plus the skateboarder is 3.0 m/s. Determine the speed of the skateboarder just before he landed on the skateboard. (a) Does tt an inel (b) Solve 6. Two cars
A string is wrapped around a disk of mass m = 1.8 kg and radius R = 0.10 m. Starting from rest, you pull the string with a constant force F = 7 N along a nearly frictionless surface. At the instant when the center of the disk has moved a distance x = 0.14 m, your hand has moved a distance of d = 0.33 m. Two pucks, one pulled from the center, the other by a string wrapped...