[Answered] A suitcase is sitting on a horizontal conveyor belt, which is moving at speed v. The work done by ...

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Author Question: A suitcase is sitting on a horizontal conveyor belt, which is moving at speed v. The work done by ... (Read 95 times)

bobypop

Hero Member
Posts: 539

on: Jul 28, 2018

A suitcase is sitting on a horizontal conveyor belt, which is moving at speed v. The work done by the frictional force on the suitcase is
a. positive.
b. negative.
c. zero.
d. impossible to determine without knowing the mass of the suitcase.

Question 2

A box slides across a floor and comes to rest. The work done by the frictional force on the box is
a. positive.
b. negative.
c. zero.
d. impossible to determine without knowing the coefficient of friction.

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14vl19

Sr. Member
Posts: 310

Reply #1 on: Jul 28, 2018

Answer to Question 1

a

Answer to Question 2

b

bobypop

Hero Member
Posts: 539

Reply #2 on: Jul 28, 2018

Thanks

14vl19

Sr. Member
Posts: 310

Reply #3 on: Jul 28, 2018

Welcome

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Author Question: A suitcase is sitting on a horizontal conveyor belt, which is moving at speed v. The work done by ... (Read 95 times)

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