Author Question: Two identical ladders are 3.0 m long and weigh 600 N each. They are connected by a hinge at the top ... (Read 57 times)

ARLKQ

  • Hero Member
  • *****
  • Posts: 571
Two identical ladders are 3.0 m long and weigh 600 N each. They are connected by a hinge at the top and are held together by a horizontal rope, 1.0 m above the smooth floor forming a symmetric A arrangement.
 
  The angle between the ladders is 60 and both ladders have their center of gravity at their midpoint. What is the tension in the rope? A) 240 N
  B) 300 N
  C) 220 N
  D) 260 N
  E) 280 N

Question 2

An object drops a distance h in a time of 6.3 s on the surface of the earth (neglecting air effects).
 
  How long would it take the same object to drop the same distance on the surface of spherical asteroid X having a mass of 1.1  1022 kg and a radius of 4.0  105 m? (G = 6.67  10-11 N  m2/kg2,
  Mearth = 5.97  1024 kg, Rearth = 6.38  106 m)
  A) 9.2 s
  B) 6.3 s
  C) 5.2 s
  D) 12 s
  E) 3.3 s



Sammyo

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

E

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

For a complete list of videos, visit our video library