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
Goryan [66]
3 years ago
12

Consider a horizontal, uniform board of weight 125 N and length 4 m that is supported by vertical chains at each end. A person w

eighing 500 N is sitting on the board. The tension in the right chain is 250 N
What is the tension in the left chain?

a. 250 N
b. 375 N
c. 500 N
d. 625 N
e. 875 N
Physics
1 answer:
Norma-Jean [14]3 years ago
5 0

Answer:

b. 375 N

Explanation:

System of forces in balance

ΣFy = 0 Equation (1)

Forces acting on the board

T₁: Tension in the  left chain ,  vertical and upward

T₂ = 250 N : Tension in the right chain ,  vertical and upward

W₁ = 125 N : Weight of the  board , vertical and downward

W₂ =  500 N : Weight of the  person , vertical and downward

Calculation of the T₁

We apply the Equation (1)

ΣFy = 0  

T₁+T₂-W₁-W₂ = 0

T₁ = -T₂+W₁+W₂

T₁ = -250 N+ 125 N+ 500 N

T₁ = 375 N

You might be interested in
Tyyyyyyyyyyyyyyyyyyyyyyyy​
Aliun [14]

Answer:

hub9hybygbgybgybgygybsbgydgbydxbgbyxdgbyxdyggdxygbyxdgybzgbydbgyzsbgydgbyzdgxbybgydzs

Explanation:

4 0
3 years ago
Read 2 more answers
Consider two identical insulated metal spheres, A and B. Sphere A initially has a charge of -6.0 units and sphere B initially ha
Oksi-84 [34.3K]

Answer:

<em>-2 units of charge</em>

Explanation:

charge on A = Qa = -6 units

charge on B = Qb = 2 units

if the spheres are brought in contact with each other, the resultant charge will be evenly distributed on the spheres when they are finally separated.

charge on each sphere will be = \frac{Qa + Qb}{2}

charge on each sphere =  \frac{-6 + 2}{2} = \frac{-4}{2} = <em>-2 units of charge</em>

8 0
3 years ago
A person with mass 65 kg, standing still, throws an object at 4 m/s. If the
fenix001 [56]

Explanation:

Momentum before = momentum after

m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂

(65 kg) (0 m/s) + m (0 m/s) = (65 kg) (-3.5 m/s) + m (4 m/s)

m ≈ 57 kg

7 0
3 years ago
What are two ways thermal energy can be increased in a system?
MaRussiya [10]
Adding thermal energy
Performing work on the system
3 0
3 years ago
Why is physics an important part of history
tigry1 [53]

Answer:

History and physics are intertwined through all the revolutionary thinkers, scientists, and people who studied these ideas. For example, many historical thinkers such as Isaac Newton and Galileo Galilei not only had revolutionary ideas, but they also changed life forever as the people knew it. It shocked the people and taught them new things, and upset the church.

Explanation:

8 0
4 years ago
Read 2 more answers
Other questions:
  • A force of 2N will stretch a rubber band 0.02m. Assuming that Hooke's Law applies, answer the following: How far will a 1600N fo
    15·1 answer
  • What process modifies light waves to vibrate in a single plane
    12·1 answer
  • A certain part of an aircraft engine has a volume of 1.4 ft^3. (a) Find the weight of the piece when it is made of lead. (b) If
    8·1 answer
  • During an experiment of momentum, trolley, X, of mass (2.34 ± 0.01) kg is moving away from another trolley, Y, of mass (2.561 ±
    7·1 answer
  • Which provides the best analogy for an electron in an atomic orbital?
    14·1 answer
  • On a touchdown attempt, 95.00 kg running back runs toward the end zone at 3.750 m/s. A 113.0 kg line-backer moving at 5.380 m/s
    6·1 answer
  • The Nucleus of the Atom is in the center of the Atom, not in the outer rings &amp; orbitals.
    13·1 answer
  • What type of medium (solids, liquids, or gases) do sound waves travel fastest in?
    9·1 answer
  • Smooth muscle is found mainly in
    9·1 answer
  • Daniel is 50.0 meters away from a building. He observes that his line-of-sight to the tip of the building makes an angle of 63.0
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!