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6 questions
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  • Q1
    A 10-N force is exerted on a box, moving it 20 m in the same direction. According to the above diagram, what is the magnitude of work done on the box?
    Question Image
    2 J
    30 J
    10 J
    200 J
    120s
    112.39.c.6.a
  • Q2
    Conveyor belts are often used to move packages around warehouses. The conveyor shown below moves packages at a steady 4.0 m/s. A 500 N employee decides to catch a ride by sitting on a 1,000 N box for a 50 m trip as shown below. What is the work done by the employee on the box shown above?
    Question Image
    500,000 J
    0 J
    1,500,000 J
    1,000,000 J
    120s
    112.39.c.6.a
  • Q3
    A 100 kg gymnast comes to a stop after tumbling. Her feet do 5,000 J of work to stop her. Which of the following was the girl's velocity when she began to stop?
    5 m/s
    10 m/s
    100 m/s
    50 m/s
    120s
    112.39.c.6.a
  • Q4
    Calculate the potential energy of a 6 kg bowling ball suspended 3 m above the surface of the Earth.
    2 J
    0.2 J
    176.4 J
    18 J
    120s
    112.39.c.6.a
  • Q5
    A student examines the relationship between gravitational potential energy and position of a ball above the ground as shown in the graph below. What does the slope of the above graph represent?
    Question Image
    Potential energy
    Acceleration due to gravity
    Weight
    Mass
    120s
    112.39.c.6.a
  • Q6
    A tennis ball launcher works by using a spring to propel the ball forward as shown below: One model of tennis ball launcher has advertised that it is capable of imparting 15,000 J of kinetic energy to a 0.5 kg ball initially at rest. A student carefully measures the compression of the spring to be 0.10 m. What is the value of the spring constant for the tennis ball launcher according to the data provided?
    Question Image
    3,000,000 N/m
    3.6 X 10^13 N/m
    1,732 N/m
    6,000,000 N/m
    120s
    112.39.c.6.a

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