PHYSICS.I.PRACTICE.PROBLEMS.SET.2.1.SOLN

PHYSICS.I.PRACTICE.P - WWW.MIAMI-BEST-MATH-TUTOR.COM E-MAIL [email protected] CONTACT NUMBER(786)556-4839 PRACTICE PROBLEMS SET 2.1 1 A

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WWW.MIAMI-BEST-MATH-TUTOR.COM PHYSICS.I.PRACTICE.PROBLEMS.SET.2.1 PAGE 1 OF 12 WWW.MIAMI-BEST-MATH-TUTOR.COM E-MAIL: [email protected] CONTACT NUMBER: (786)556-4839 PRACTICE PROBLEMS SET 2.1 1. A child does 350 J of work while pulling a box from the ground up to his tree house with a rope. The tree house is 6.9 m above the ground. What is the mass of the box? 4.7 kg 3.1 kg 5.2 kg 5.2 kg abcd
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WWW.MIAMI-BEST-MATH-TUTOR.COM PHYSICS.I.PRACTICE.PROBLEMS.SET.2.1 PAGE 2 OF 12 2. A futuristic design for a car is to have disk-like flywheel within the car storing kinetic energy. The flywheel has mass 370 kg with a radius of 0.50 m and can rotate up to 340 rev/s. Assuming all of this stored kinetic energy could be transferred to the linear velocity of the 3200-kg car, find the maximum attainable speed of the car.
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WWW.MIAMI-BEST-MATH-TUTOR.COM PHYSICS.I.PRACTICE.PROBLEMS.SET.2.1 PAGE 3 OF 12 3. A pitcher is employing a ballistic pendulum to determine the speed of his fastball. A 5.3 kg lump of clay is suspended from a cord 2.0 m long. When the pitcher throws his fastball aimed at the clay, the ball becomes embedded in the clay and the two swing up to a maximum height of 0.10 m. If the mass of the baseball is 0.21 kg, use conservation of momentum and energy to find the speed of the pitch.
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WWW.MIAMI-BEST-MATH-TUTOR.COM
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This note was uploaded on 09/02/2010 for the course PHYS MERR1 taught by Professor Carter during the Spring '10 term at UMass (Amherst).

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PHYSICS.I.PRACTICE.P - WWW.MIAMI-BEST-MATH-TUTOR.COM E-MAIL [email protected] CONTACT NUMBER(786)556-4839 PRACTICE PROBLEMS SET 2.1 1 A

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