1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
navik [9.2K]
3 years ago
11

A wooden bucket filled with water has a mass of 68 kg and is attached to a rope that is wound around a cylinder with a radius of

0.078 m. A crank with a turning radius of 0.250 m is attached to the end of the cylinder. What minimum force directed perpendicularly to the crank handle is required to raise the bucket
Physics
1 answer:
Aleonysh [2.5K]3 years ago
7 0

Answer: 210.2N

Explanation:

Assume a bucket of water with a total mass of 68kg is attached to a rope, which in turn is tied around a 0.078m radius cylinder at the top of a well. A crank with a turning radius of 0.250 m is attached to the end of the cylinder.

the minimum force directed perpendicular to the crank handle required to raise the bucket is

(Assume the rope's mass is negligible, that the cylinder turns on friction-less bearings, and that g = 9.8 m/s2

The crank handle provides a torque T=0.25F where F is the force we are looking for.

A free body diagram will show that the tension in the rope times the cylinder radius R is equal to the torque on the cylinder. But the tension in the rope is just the weight of the bucket

W=mg= 68kg

W(0.078)=T=0.25F

F=0.312W=0.312(68kg)=21.216kg= 210.2N

You might be interested in
Which statement is most likely true?
Bumek [7]
Subduction occurs in both locations
3 0
3 years ago
An ice skater is moving in a circle at a constant speed. Which of the following best explains the forces acting on the ice skate
dangina [55]
B because the skater is constantly moving in the same speed to go in a circle .
7 0
3 years ago
Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. Which of these mate
Dmitry [639]

Answer:

metal

Explanation:

metal is an excellent conductor for heat and electricity therefore making it perfect to experiment with different temperatures.

7 0
3 years ago
___________ force can be thought of as either a push or a pull, as long as it makes the object move in a circular path.
fomenos
I believe it would be the Centripetal force.
5 0
3 years ago
Read 2 more answers
What happens to a path of a light ray parallel to the principal axis, after it passes through a converging
Simora [160]

Answer: The ray that passes through the focal point on the way to the lens will refract and travel parallel to the principal axis. ... All three rays should intersect at exactly the same point.

Explanation: Once these incident rays strike the lens, refract them according to the three rules of refraction for converging lenses.

3 0
3 years ago
Other questions:
  • A roller coaster slows as it travels up a hill<br> a) speed <br> b) velocity <br> c) acceleration
    8·1 answer
  • If a 3-kilogram iron ball is acted upon by a force of 3 newtons, what will be the result?
    5·1 answer
  • A novelty golf ball of mass m is launched with an initial velocity v0 = (25i + 13j) m/s and then follows a parabolic trajectory.
    8·1 answer
  • an eco friendly hotel is under construction. Which strategies will help hotel management reach its goal of being eco friendly
    13·1 answer
  • A large, cylindrical water tank with diameter 2.40 mm is on a platform 2.00 mm above the ground. The vertical tank is open to th
    5·1 answer
  • What two forces act on falling bodies?
    7·1 answer
  • A 6.0 cm candle is 30.0 cm from a concave mirror that has a focal length of 11 cm. What is the distance of the image from the mi
    10·1 answer
  • Heat naturally flows from an object that has a _______________ temperature to an object that has a _______________ temperature.
    11·2 answers
  • A football game starts with a kickoff. If the ball is kicked with a velocity of 72 m/s 35 o to
    10·1 answer
  • Which of the following is a Nobel gas?<br> Ba2+<br> OA<br> OB. Ci<br> Kr<br> Ос.<br> Ca<br> D.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!