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Ivenika [448]
3 years ago
14

In which situation is maximum work considered to be done by a force?

Physics
1 answer:
umka2103 [35]3 years ago
7 0

Answer:

A) When the angle between the Force (F) and Displacement (x) is 0°, because, Work done (W) is directly proportional to the Cosine of the Angle between the Force applied and the resultant displacement of the subject.

W = F•x cos ∅

If ∅ = 0°,

W = F•x ===> Maximum Work Done.

If ∅ = 45°,

W = F•x/√2

If ∅ = 90°,

W = 0

If ∅ = 180°,

W = –F•x ===> Minimum Work Done.

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Answer:

The correct answer is option a. 400J

Explanation:

Hello!

Let's solve this!

To know if the work is positive or negative we have to know the following:

The work is positive when the gas performs (expansion)

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In this case the work is done by the gas, so it is positive.

The correct answer is option a. 400J

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What element atomic number is in Group 17 and Period 6?
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3 years ago
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For the quiz in K12

3 0
2 years ago
A mass hanging from a spring undergoes vertical simple harmonic motion.1) Where in the motion is the velocity equal to zero?At t
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Answer:

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Explanation:

Simple Harmonic Motion ( S.H.M) : Simple harmonic motion can be defined as a type of motion were a body vibrates or moves to and fro along a straight line under the influence of a force, so that the acceleration of the body towards a fixed point (equilibrium position) is proportional to its distance or displacement from that point. Examples of  bodies undergoing simple harmonic motion are

<em>⇒ The motion of a mass hung on a spring.</em>

<em>⇒ The motion of a simple pendulum</em>

<em>⇒ The motion of a loaded test - tube in a liquid.</em>

Motion of a mass hung on a spring:When a mass is hung to one end spring and other end is firmly clamped to a rigid support.(i)When the mass is in motion, (ii)it pulled down to its lowest point, passes through it equilibrium position (iii) goes to its highest point.

<em>(1) At the lowest and the highest point during the motion of a mass hung a spring, the velocity = 0</em>

<em>(2) At the equilibrium point or unstretched position the velocity is maximum</em>

<em></em>

<em></em>

4 0
3 years ago
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