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
Katen [24]
3 years ago
12

How would you find the speed of a person who walked

Physics
1 answer:
Alex Ar [27]3 years ago
4 0

Answer:

v = 1.25 m/s

Explanation:

We have,

Distance covered by a person is 10 meters

Time taken by him to cover that distance is 8 seconds.

If we want to find the speed of a person, we must know distance covered by it and taken. In this case, we know both distance and time. His speed is given by :

v=\dfrac{d}{t}\\\\v=\dfrac{10\ m}{8\ s}\\\\v=1.25\ m/s

So, the speed of the person is 1.25 m/s.

You might be interested in
A mass of 250 N is on a piston of 2.0 m^2. What force is needed to lift this piston if the area of the second piston is 0.5 m^2?
prohojiy [21]

Answer:

<h3>62.5N</h3>

Explanation:

The pressure at one end of the piston is equal to the pressure on the second piston.

Pressure = Force/Area

F1/A1 = F2/A2

Given

F1 = 250N

A1 = 2.0m²

A2 = 0.5m²

F2 = ?

Substituting the given values in the formula;

250/2 = F2/0.5

cross multiply

250*0.5 = 2F2

125 = 2F2

F2 = 125/2

F2 = 62.5N

Hence the  force needed to lift this piston if the area of the second piston is 0.5 m^2 is 62.5N

8 0
3 years ago
select the correct scientific notation form of this numeral 541 5 * 10^2 5.4 * 10^2 5.4 * 10^2 5.0 * 10^2
USPshnik [31]
To find the scientific notation, you need to divide at the decimal by the power of 10. So since there are 2 powers of 10, what you want to do is move the decimal 2 places to the left which will give you: .054
7 0
3 years ago
Why is understanding the concept of forces, friction and gravity important?
nydimaria [60]
Because it's the basis of how everything around you works
8 0
3 years ago
An object is dropped from a height of 25 meters. At what velocity will it hit the ground?
Goryan [66]
You can use Vf^2-Vi^2 = 2ax

Vf^2 - 0 = 2(9.81)(25)

Or you can use energy

mgh = 1/2mv^2

2gh =v^2

Same thing
6 0
3 years ago
What should you do if someone on foot approaches your car while you are in it?
tatyana61 [14]
It depends. If you are driving and the person doesn't look like a serial killer, you should stop.
6 0
3 years ago
Other questions:
  • Hi! Can you help me? :) A satellite's speed is 10,000 m/s. After 1 min, it is 5,000 m/s. What is the satellite's acceleration? T
    11·2 answers
  • According to freud what part of the mind is concerned with morals and ethics
    6·1 answer
  • I AM THE RED BLOOD CELL STORY<br> My manufacturing process goes by a fancy name of _______.
    7·2 answers
  • A single, nonconstant force acts in the + x ‑direction on an object of mass M that is constrained to move along the x ‑axis. As
    13·1 answer
  • A medium is a substance or material in which a wave can travel through. True or False
    7·2 answers
  • What is the relationship between distance and sound wave return time?
    8·1 answer
  • An 1800-kg car has an acceleration of 3.8 m/s2. What is the force acting<br> on the car?
    12·2 answers
  • How many times more acidic is solution A with a pH of 3.4 than solution B with a pH of 8.4?
    5·1 answer
  • PLEASE HELP!!!
    10·1 answer
  • Calculate the gravitational attraction between two objects which masses are: mass A: 2.5kg, mass B: 5kg. The distance between th
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!