cheat sheet

# cheat sheet - 1 A roller coaster includes a vertical...

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1. A roller coaster includes a vertical circular loop of radius 10 m . Consider the situation where the car is at the top of the loop moving with a speed of 20.0 m/s. The car’s radial acceleration is: A. 20 m/s2 downward. B. 20 m/s2 upward. C. 40 m/s2 downward. D. 40 m/s2 upward. E. Zero. 2. A CD has a diameter of 12.0 cm. If the CD starts from rest and has a constant angular acceleration of 2.0 rad/s2, then the angular velocity of the CD after 4.0 sec is: A. 12 rad/s. B. 10 rad/s. C. 9.0 rad/s. D. 8.0 rad/s. E. 6.0 rad/s. 3. A 10.0 N force is applied at an angle of 60.0 degrees above the horizontal to a 4.00 kg box. The box moves a horizontal distance of 4.00 meters. The work done by the 10.0 N force is: A. 5.0 J. B. 10.0 J. C. 20.0 J. D. 30.0 J. E. 40.0 J. 3 4. A spring with a spring constant of 10.0 N/m is compressed by 0.2 m. If the spring is uncompressed initially, then the work done is: A. 0.12 J. B. 0.16 J.
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## This note was uploaded on 12/14/2011 for the course PHY 14434 taught by Professor Huang during the Spring '09 term at Wayne State University.

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cheat sheet - 1 A roller coaster includes a vertical...

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