[Answered] A 100 kg crate is attached to a rope wrapped around the inner disk as shown. A person pulls on ...

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Author Question: A 100 kg crate is attached to a rope wrapped around the inner disk as shown. A person pulls on ... (Read 116 times)

jon_i

Hero Member
Posts: 549

on: Jul 28, 2018

A 100 kg crate is attached to a rope wrapped around the inner disk as shown. A person pulls on another rope wrapped around the outer disk with force F to lift the crate.

What force F is needed to lift the crate 2 m?

1.about 20 N
2.about 50 N
3.about 100 N
4.about 200 N
5.about 500 N
6.about 1,000 N
7.about 2,000 N
8.about 5,000 N
9.Impossible to determine without knowing the radii
10.Impossible to determine for some other reason(s)

Question 2

A disk, with radius 0.25 m and mass 4 kg, lies flat on a smooth horizontal tabletop. A string wound about the disk is pulled with a force of 8N. What is the angular acceleration of the disk?

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sarajane1989

Sr. Member
Posts: 296

Reply #1 on: Jul 28, 2018

Answer to Question 1

4

Answer to Question 2

jon_i

Hero Member
Posts: 549

Reply #2 on: Jul 28, 2018

Thank you!

sarajane1989

Sr. Member
Posts: 296

Reply #3 on: Jul 28, 2018

Always glad to help...

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