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
AfilCa [17]
3 years ago
9

A small cylinder rests on a circular turntable that is rotating clockwise at a constant speed. Which set of vectors gives the di

rection of the velocity v with arrow, acceleration a with arrow of the cylinder, and the net force ΣF with arrow that acts on it?
(A) 3
(B) 4
(C) 1
(D) 2

Physics
1 answer:
I am Lyosha [343]3 years ago
4 0

The question is missing the diagram. Also, the choices must have pictorial representation. So, I have attached the missing diagram and the pictorial representation of the vectors.

Answer:

The correct representation is attached below. Force and acceleration will be towards the center of rotation while the velocity will be along the tangent to the circular motion. <u>Option (D).</u>

Explanation:

From the figure, we can conclude the following points:

1. The cylinder is under a uniform circular motion as the circular table is moving at constant speed.

2. For a circular motion, velocity acts along the tangent to the circular path.

3. For a circular motion, centripetal force acts on the body that causes it move around a circular path.

4 The direction of the centripetal force is radially inward towards the center of rotation.

5. The centripetal force causes a centripetal acceleration acting on the body.

6. From Newton's second law, the net acceleration of a body is in the same direction as that of the net force acting on it. So, centripetal acceleration also acts in the radially inward direction.

Therefore, from the above conclusions, it is clear that velocity will act in the horizontal direction at the given instance of time and force and acceleration will act vertically down for the given instance.

This is shown in the picture below. The option (D).

You might be interested in
HELP HELP HELP ME PLEASE!!!!!!!!!!!!
adoni [48]
The air would contract therefore the answer is the second choice.
5 0
3 years ago
A child walks due east on the deck of a ship at 2 miles per hour. the ship is moving north at a speed of 18 miles per hour. find
garik1379 [7]
Refer to the figure shown below.

The velocity of the child and the velocity of the ship should be added vectorially to find the speed and direction of the child relative to the water surface.

The magnitude of the child's velocity is
v = √(2² + 18²) = 18.11 mph

The direction of the child's speed is
θ = tan⁻¹ (18/2) = tan⁻¹ 9 = 83.7° north of east or counterclockwise from the eastern direction.

Answer:
The magnitude is 18.1 mph.
The direction is 84° north of east.

8 0
3 years ago
28. Sound can be heard around a corner because of
Lesechka [4]

Answer:

Diffraction of sound wavelengths.

Explanation:

Diffraction-A wave is able to bend around a corner due to the effects of diffraction. sound aves are capable of bending around corners in the same magnitude as it's wavelength making it possible to hear sounds around corners.

5 0
3 years ago
Which source of information is generally considered credible?
Nonamiya [84]

Which source of information is generally considered credible?


3 0
3 years ago
Which element is the primary fuel used to generate electricity using nuclear energy?
kondor19780726 [428]
I think it might be uranium

hope this helps.
<span />
8 0
3 years ago
Other questions:
  • When heating water on a stove, a full pan of water takes longer to reach the boiling point than a pan that is half full. why?
    5·1 answer
  • A 16-cm-long straight line connects the center of a turntable to its edge. The turntable rotates counter-clockwise at 45 rpm. A
    7·1 answer
  • What is the speed of light m/s
    14·2 answers
  • Why did you spin counterclockwise rather than clockwise
    5·2 answers
  • So we were working on some pulley problems but this one has kinda left me scratching my head, please help! My question is for pa
    10·1 answer
  • Teams A and B are in a tug-of-war challenge. Team A wins the challenge.
    5·2 answers
  • What is the efficiency of a 0.60 kg basketball that, one dropped from a 2.0 m height (from basket rim) , rebounds to 1.2 m in he
    5·1 answer
  • Mechanical Energy is _______ when the amount of kinetic and potential energies added together remains the same.
    9·1 answer
  • The distance between the line X is =3 and X=-5 is what unit​
    6·2 answers
  • A current is detected in a photoelectric effect experiment when an electrode is illuminated with green light. Will a current als
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!