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
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.

You might be interested in
Thought Experiment: A monkey escapes from a zoo and climbs a tree. After failing to entice the monkey down, a zookeeper fires a
Andreyy89

Explanation:

When bullet is shot towards the monkey then let say the distance of monkey from the bullet is "d"

so we can find the time to reach the bullet to the monkey

t = \frac{d}{vcos\theta}

Now similarly we can find the vertical displacement of the bullet in the same time

\Delta y = vsin\theta t - \frac{1}{2}gt^2

\Delta y = v sin\theta (\frac{d}{vcos\theta}) - \frac{1}{2}gt^2

so it is given as

\Delta y = d tan\theta - \frac{1}{2}gt^2

here if the monkey is initially at height H above the ground at given angle then we can say

H = dtan\theta

so we can say that

\Delta y = H - \frac{1}{2}gt^2

So if at the same time monkey will fall down then the height of monkey from ground after time "t" is given as

\Delta y = H - \frac{1}{2}gt^2

so here bullet will hit the monkey as both monkey and bullet are at same position.

3 0
2 years ago
Why is the answer C for this problem?
shusha [124]

Answer:

Explanation:

If you look closely, force 1 does not reach 0.2 until 0.4 force 2 reaches 0.2 at about 0.2 - hope that made sense :P

4 0
3 years ago
Which of the following is not a result of deforestation?
klemol [59]

Answer:

B

Explanation:

5 0
2 years ago
Read 2 more answers
When riding your skateboard you crash into a curb, the skateboard stops, you continue moving forward. Which law of motion is bei
Olenka [21]
You continue moving forward, and you HOPE that some of the other
people in your Physics class are seeing this, because it's a great
demonstration of Newton's First Law of Motion.
7 0
3 years ago
Which of the following is the most accurate statement concerning the properties of matter?
DIA [1.3K]

Answer:

b. they can be observed and measured

Explanation:

Matter is anything that has weight and occupy space. There are three states of matter namely Solid, liquid and gas.

The properties of matter are both physical and chemical in nature. Both properties can be measured and observed. Phhysical properties are anything that can be measured without changing the state of the matter. Example of physical properties includes mass, volume, length, color etc.

Chemical properties is another properties of matter. This is the ability of the states of matters to combine with other substance to form a new product for example, rusting of iron, formation of salt etc.

All this as discussed are both measurable and can be observed.

8 0
3 years ago
Other questions:
  • The magnetic dipole moment of Earth is 8.00 ✕ 1022 J/T. Assume that this is produced by charges flowing in Earth's molten outer
    5·1 answer
  • Near the surface of the earth, objects in free fall (but not terminal velocity) experience
    7·1 answer
  • How does a plane and parachute manipulate air resistance differently?
    12·1 answer
  • When sodium reacts with chlorine, sodium chloride is produced. Andrew represented this reaction with this equation:
    10·2 answers
  • Choose all facts that increase the orbital velocity of a vessel around planet B. Bigger mass of planet B smaller mass of planet
    8·1 answer
  • Match the glacier feature with its description.
    5·2 answers
  • What property do all three of these common household substances have in common?
    12·1 answer
  • What are the units for gravitational field strength ?
    15·2 answers
  • Which one is it?????
    11·2 answers
  • A behavior that is developed by observing others or being taught is
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!