Question

80 foot-pounds of work is needed to move the sofa in Tyler's apartment. Which of the following statements is true?

a.) If Tyler moves the sofa himself, he will do more work than if he gets a friend to help.

b.) If Tyler and his roommate move the sofa together, they will do half the amount of work.

c.) If the sofa does not move, no work is done.

d.)All of the above.

Answer 1

C

Step-by-step explanation:

Because getting a friend to help will not half the work, and if he does it alone it will not increase the work. Knowing A, and B are wrong, we know it can not be D for the first two options are wrong. Also proof of it being C: if an object moves no distance no work can be done. For example 80 x 0 = 0 The answer being amount of work being done.

Answer 2

D is the correct answer
hop it helped.