This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A girl is using a rope to pull a box that weighs 300 N across a level surface with constant ... (Read 139 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Jul 28, 2018
A girl is using a rope to pull a box that weighs 300 N across a level surface with constant velocity. The rope makes an angle of 30 above the horizontal, and the tension in the rope is 100 N. What is the normal force of the floor on the box?
 a. 350 N
  b. 200 N
  c. 400 N
  d. 250 N
  e. 213 N

Question 2

A 20.0-kg traffic light hangs midway on a cable between two poles 30.0 meters apart. If the sag in the cable is 0.40 meters, what is the tension in each side of the cable?
 a. 9.8E+1 N
  b. 9.8E+3 N
  c. 3.7E+3 N
  d. 3.8E+2 N
  e. 2.0E+4 N


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

c


geoffrey

  • Member
  • Posts: 880
Reply 2 on: Jul 28, 2018
:D TYSM

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Surface Tension Surface Tension
A Model of Surface Dyslexia A Model of Surface Dyslexia
Effleurage to the foot bottom using the fist. Hold the dorsal surface of the foot with one hand ... Effleurage to the foot bottom using the fist. Hold the dorsal surface of the foot with one hand ...
How to find the volume and surface area a rectangular prism How to find the volume and surface area a rectangular prism
Directs surface flow of air Directs surface flow of air
Video: How eudicots (true dicots) differ from monocots Animation

For a complete list of videos, visit our video library