Investigate and calculate quantities using the work-energy theorem in various situations.
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Q 1/6
Score 0
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?
120
2 J
30 J
10 J
200 J
Q 2/6
Score 0
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?
120
500,000 J
0 J
1,500,000 J
1,000,000 J
6 questions
Q.
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?
1
120 sec
112.39.c.6.a
Q.
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?
2
120 sec
112.39.c.6.a
Q.
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?
3
120 sec
112.39.c.6.a
Q.
Calculate the potential energy of a 6 kg bowling ball suspended 3 m above the surface of the Earth.
4
120 sec
112.39.c.6.a
Q.
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?
5
120 sec
112.39.c.6.a
Q.
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?
