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
Dmitrij [34]
3 years ago
8

Una patinadora de 50 kg parte del reposo y después de recorrer 3k alcanza una velocidad de 15 m/s. ¿Qué fuerza neta experimenta

la patinadora?
Physics
1 answer:
e-lub [12.9K]3 years ago
6 0

Answer:

F_{net} = 1.875\,N

Explanation:

Asúmase que la patinadora experimenta una aceleración constante. La fuerza neta experimentada por la patinadora:

F_{net} = (50\,kg)\cdot \left[\frac{\left(15\,\frac{m}{s}\right)^{2}-\left(0\,\frac{m}{s}\right)^{2} }{2\cdot (3000\,m)} \right]

F_{net} = 1.875\,N

You might be interested in
A 1400 kg car is moving at 33.8 m/s when a force is applied the opposite direction of the car's motion. The car slows down to 21
zubka84 [21]

Solve for acceleration:

<em>a</em> = (21.4 m/s - 33.8 m/s) / (4.7 s)

<em>a</em> ≈ -2.6 m/s²

Solve for force:

<em>F</em> = (1400 kg) <em>a</em> ≈ -3700 N

The minus sign tells you the force points in the opposite direction of the car's motion. Its magnitude is always positive, so <em>F</em> = 3700 N.

3 0
3 years ago
Which of the following statements correctly described natural electric fields?
Mila [183]

Thunder is evidence of electric fields in the atmosphere.

The charge difference between the clouds and earth can be described as parallel conducting plates that produce electric fields in the atmosphere.

could be true

5 0
3 years ago
Heat pumps move heat from __________ to __________ areas &amp; REQUIRES energy. *
sergejj [24]
The correct answer to this question is false
8 0
3 years ago
Please help please help
Inessa [10]

Answer: p= m/v so 90kg/.075m^3 = 1,200

2a. .35 m 1.1 m and .015 m

2b. 35 cm x 110 cm x 1.5 cm = 5,775 cm^3 = 57.75 m^3

mass= pv

2700•57.75= 155,925 kg

mass= 155,925 kg

volume= 57.75 m^3

Explanation: physics

6 0
3 years ago
2. A net force is _____.
Art [367]

The answer would be "the vector sum of forces acting on a particle or body."

Hope that helped ^^

8 0
3 years ago
Other questions:
  • _____ is a measure of the force of gravity pulling down on an object. it is measured in newtons (N), the common unit for measuri
    5·1 answer
  • The shape of the earth is an _______ ________
    6·1 answer
  • What precaution should you take while towing a trailered boat?
    5·2 answers
  • A 220 kg crate hangs from the end of a rope of length L = 14.0 m. You push horizontally on the crate with a varying force F to m
    6·1 answer
  • When a physical or chemical change occurs, the law of conservation of mass always applies. What happens to the atoms during a ch
    7·2 answers
  • Can somebody help me pls
    12·1 answer
  • Two charged objects attract each other with a certain force. If the charge on one of the objects is doubled with no change in th
    7·1 answer
  • What's wrong with the following statement? “The racing car turns around
    11·1 answer
  • PLEASE HELP! ASAP
    11·2 answers
  • Calculate the speed of an object that moves 200 m in 4 s?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!