# Assignment 1.pdf - PHYS1005 Tutorial Assignment #1 Dr....

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PHYS1005 TutorialAssignment #1Dr. Edward Chan
Kinetic energy and gravitational potential energy1. A cart travels along a frictionless roller coaster track. At point A, thecart is 10 m above the ground and traveling at 2 m/s.a)What is the velocity at point B when the cart reaches the ground?b)What is the velocity of the cart at point C when the cart reaches aheight of 3 m?c)What is the maximum height the cart can reach before the cartstops?
2. An object whose mass is 43000 g is hanging on a thin wire onanother planet. The object has a potential energy of 3160.5 J and it is300 cm above the ground. What is the acceleration due to gravity onthis other planet?2Kinetic energy and gravitational potential energy
Kinetic energy and gravitational potential energy3. A ball of mass 0.5 kg is attached to a string of length 2 m, forminga pendulum. If the string is raised to have an angle of 35 degreesbelow the horizontal and released,a)Where will the ball be traveling the fastest?

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