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
kumpel [21]
3 years ago
9

A 50 kg car is pushed so that it speeds up from 20 m/s to 50 m/s in 3 seconds. What is the force acting on the car?

Physics
1 answer:
egoroff_w [7]3 years ago
3 0

Answer:

A. 500 N

Explanation:

Acceleration is change in velocity over change in time.

a = Δv / Δt

a = (50 m/s − 20 m/s) / 3 s

a = 10 m/s²

Force is mass times acceleration.

F = ma

F = (50 kg) (10 m/s²)

F = 500 N

You might be interested in
Which of the following correctly arranges the planets by the size of their diameter in increasing order?
valentinak56 [21]
Increasing Order..
So, it's from the little one into the biggest one..

My Answer is
C: Mercury < Earth < Saturn < Jupiter

What Shape of The Earth ?
Is it Round or Flat ?
Subjective Answer..
7 0
3 years ago
Read 2 more answers
An electric current will always follow
MrRa [10]

Answer:

A. The path of least resistance.

Explanation:

ur welcome again ;)

3 0
3 years ago
The table represents the speed of a car in a northern direction over several seconds. Column 1 would be on the x-axis, and Colum
TEA [102]

"The table represents the speed of a car in a northern direction over several seconds. Column 1 would be on the x-axis, and Column 2 would be on the y-axis."


typical plot is speed or velocity on the y-axis n time on the x-axis so the ans is Column 1 should be titled “Time,” and Column 2 should be titled “Velocity.”

7 0
3 years ago
Read 2 more answers
A light beam has speed c in vacuum and speed v in a certain plastic. The index of refraction n of this plastic is
Mnenie [13.5K]

Answer:

n = \frac{c}{v}

Explanation:

Refractive Index: It is a measure to find how fast the light travels through a medium. It is ration of the speed of light in vacuum to speed of light in the medium. Speed of light is not constant and varies depending on the density of the medium.

In vacuum the speed of light is 300000 km/s and is denoted by c. When the light beam enters any medium the speed will decrease. Here it is given that the speed in plastic is v. Thus the refractive index(n) is given as:

n = \frac{c}{v}

It is a dimensionless no.

3 0
3 years ago
Based on the graph, which data point is most likely to have experimental
Len [333]

Answer:

B. 59 kg

Explanation:

From the graph you notice that a linear relation in indicated by the line joining the points such that the points on the line represent the data that show a correct relationship in the experiment.

This means that the point outside the line has an error .

This point is the value 59 kg that does not align with other values which are included in the graph.

8 0
2 years ago
Other questions:
  • Suppose a conducting rod is 52 cm long and slides on a pair of rails at 2.75 m/s. What is the strength of the magnetic field in
    8·1 answer
  • Earth Science help needed
    15·2 answers
  • How many nanoseconds does it take light to travel 3.50 ft in vacuum?
    14·1 answer
  • A sample of a solid nonmetal is compared to a sample of a solid metal. Both samples have the same volume. What is the most likel
    5·2 answers
  • If two vectors are perpendicular to each other, how should you add them?
    6·2 answers
  • {WILL GIVE (Brain lies t) TO FULL ANSWERS}
    7·2 answers
  • Under the assumption that the beam is a rectangular cantilever beam that is free to vibrate, the theoretical first natural frequ
    6·1 answer
  • Ocean water is about 96.5% pure water. what is one of the most abundant elements in ocean water?
    5·1 answer
  • Using a density of air to be 1.21kg/m3, the diameter of the bottom part of the filter as 0.15m (assume circular cross-section),
    7·1 answer
  • 2) What are the two main types of waves?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!