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
Art [367]
2 years ago
6

ou are pushing a 20-kg box along a horizontal floor. Friction acts on the box. When you apply a horizontal force of magnitude 48

N, the box moves at a constant velocity. What is the magnitude of the frictional force on the box?
Physics
2 answers:
Ratling [72]2 years ago
7 0

Answer:

Frictional force is 48N.

Explanation:

The box is moving at constant velocity so the acceleration of the box is zero. When a body moves with a constant velocity it has no acceleration and the net force on it zero. This is from Newtown's first law of motion.

Let the force you apply in pushing the box be F and the frictional force be Ff.

From Newtown's first law,

F – Ff = 0

F = Ff or Ff = F

In the question the force applied is 48N

Therefore,

Ff= F = 48N

This tells us that only an amount of force that balances the frictional force is needed to keep the box moving at constant velocity.

ziro4ka [17]2 years ago
5 0

Answer:

The magnitude of the frictional force is 48.02 N

Explanation:

Mass of box = 20 kg

Weight of the box (Normal reaction) = mass × acceleration due to gravity = 20 ×9.8 = 196 N

Horizontal force applied = 48 N

Coefficient of friction = horizontal force ÷ normal reaction = 48 ÷ 196 = 0.245

Frictional force = coefficient of friction × normal reaction = 0.245 × 196 N = 48.02 N

You might be interested in
the scores of players on a golf team are shown in the table. the teams combined score was 0 what was travis's score?
Alona [7]

Answer:

what table?

Explanation:

3 0
3 years ago
Read 2 more answers
What is the difference between a solar cell and a solar panel
dexar [7]

Solar cells and solar panels are both integral, and closely related, parts of a solar energy system. When reading about solar energy systems, it may seem as if these titles are almost interchangeable. Writers refer to them both when discussing energy production and output, and often do so without explanation of how these parts work. However, each plays a distinct role. Solar cells contain all the parts necessary to convert sunlight to electricity. Solar panels combine and direct all of that energy output.

5 0
2 years ago
Two light bulbs are installed in two sockets, the sockets are connected in series, and power is then applied to the combination
Arisa [49]

Answer:

False

Explanation:

<em>If one of the bulbs is removed from the series, the other bulb will not come on at all.</em>

This is because the removal of one of the bulbs would interrupt the flow of current though the entire circuit.

Hence, that the other one will get brighter if one of two bulbs in a circuit is removed from its socket is not true.

5 0
3 years ago
A strong gust of wind blows an apple off a tree. The apple has a mass of 0.25 kg. The gust of wind pushes the apple with a force
LenKa [72]

Answer:

2.66N

Explanation:

8 0
3 years ago
Read 2 more answers
Give an example of how a cell’s structure relates to its function in the body.
kenny6666 [7]

Answer:

The epithelial cell shape and stratification are related to its function. For example, the skin is specialized to act as a "physical" barrier to the outside world. This barrier is both structural (multi-layered) and chemical in nature. Another example is the cells that make up the tubular elements of the kidney.

Explanation:

7 0
3 years ago
Other questions:
  • . (a) A world record was set for the men's 100-m dash in the 2008 Olympic Games in Beijing by Usain Bolt of Jamaica. Bolt "coast
    15·1 answer
  • if you wanted to know how big a tiger was what measurement would you use a. candela,mole b.meter,second c. kilogram,ampere d. me
    12·1 answer
  • Two power lines run parallel for a distance of 222 m and are separated by a distance of 40.0 cm. if the current in each of the t
    13·1 answer
  • a 10kg ball is thrown into the air. it is going 3m/s when thrown. How much potential energy will it have at the top?
    14·1 answer
  • Approximately how many news cases of STIs occur in the United States
    5·1 answer
  • Most metallic elements, such as copper
    9·1 answer
  • Suppose you hit a steel nail with a 0.500-kg hammer, initially moving at 15.0 m/s and brought to rest in 2.80 mm. How much is th
    9·1 answer
  • Which is most likely a compound?
    11·1 answer
  • Compare and contrast the way molecules behave in liquid to the way they behave in solids and gases.
    13·2 answers
  • Ken Griffey, Jr's warehouse shot in the 1933 home run derby travelled 93 feet per second for 5 seconds. How far did he hit the b
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!