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 165 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
Thanks for the timely response, appreciate it

CAPTAINAMERICA

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

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

Examples of structures in which extensive surface area is important for function. Examples of structures in which extensive surface area is important for function.
The Inner Surface of Human Lung The Inner Surface of Human Lung
The Solar Constant The Solar Constant
Bidirectional Thumb Pressure on Plantar Surface. Apply bidirectional thumb pressure over the entire ... Bidirectional Thumb Pressure on Plantar Surface. Apply bidirectional thumb pressure over the entire ...
(A) Massage the ears between thumb and fingers. (B) Gently pull on ears. (A) Massage the ears between thumb and fingers. (B) Gently pull on ears.
The gap between the projected level of greenhouse gas emissions The gap between the projected level of greenhouse gas emissions
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library