Sally who weighs 450 N, stands on a skate board while roger pushes it forward 13.0 m at constant velocity on a level straight street. He app

Question

Sally who weighs 450 N, stands on a skate board while roger pushes it forward 13.0 m at constant velocity on a level straight street. He applies a constant 100 N force.

Work done on the skateboard

a. Rodger Work= 0J

b. Rodger work= 1300J

c. sally work= 1300J

d. sally work= 5850J

e. rodger work= 5850J

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Delwyn 5 years 2021-08-13T16:50:25+00:00 1 Answers 199 views 0

Answers ( )

  1. trucchi
    0
    2021-08-13T16:52:14+00:00
    Reply

    Answer:

    b. Rodger work = 1300 J

    Explanation:

    Work done: This can be defined as the product of force and distance along the direction of the force.

    From the question,

    Work is done by Rodger using a force of 100 N  in pushing the skateboard through a distance of 13.0 m.

    W = F×d…………. Equation 1

    Where W = work done, F = force, d = distance.

    Given: F = 100 N, d = 13 m

    Substitute these values into equation 1

    W = 100(13)

    W = 1300 J.

    Hence the right option is b. Rodger work = 1300 J

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