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
olga nikolaevna [1]
3 years ago
11

Nearly all physics problems will use the unit m/s squared. Why are the seconds squared?

Physics
1 answer:
Artist 52 [7]3 years ago
7 0
Seconds squared is the time unit of acceleration.  It represents the change in distance units per second per second. For example, 3 m/sec² means a distance covering 3 meters in the first second, then 9 meters in the 2nd second, and 37 meters in the third second. (3^1, 3^2, 3^3).

Acceleration is part of Newton's 2nd law: force = mass x acceleration. Units of work: joule = kg·m²/s², and power: watts = kg·m²/s³ all contain accelerations.
You might be interested in
A 1,492.3-kg airplane travels down the runway. Each of its four engines provides a force of
Fittoniya [83]

The acceleration of the air plane is 3.879 \mathrm{m} / \mathrm{s}^{2}

<u>Explanation:</u>

Given:

The mass of the air plane = 1492.3 kg

Force of each four engine = 1447.5 N

So, the total force of four engines can be calculated as = 4(1447.5) = 5790 N

The force that acts on the object is equal to the product of mass (m) and its acceleration. It can express by the below formula,

                         \text {Force }(F)=m \times \text { acceleration }(a)

The above equation can be written as below to find acceleration,

                        a=\frac{F}{m}

Now. Substitute the given values, we get,

                        a=\frac{5790}{1492.3}=3.879 \mathrm{m} / \mathrm{s}^{2}

3 0
2 years ago
Small, slowly moving spherical particles experience a drag force given by Stokes' law: Fd = 6πηrv where r is the radius of the p
Dominik [7]

Answer:

Explanation:

At the time of a body achieving terminal velocity, the drag force becomes equal to the weight of the body less the buoyant force by the surrounding medium which can be represented by the following equation

\frac{4\pi\times r^3(d-\rho)}{3} =6\pi\times n\times r\times v

Where r is radius of the body , d is density of the material of the body σ is density of the medium and n is coefficient of viscosity of the medium and v is terminal velocity.

Simplifying

v = \frac{2\times r^2(d-\rho)}{9\times n}

Assuming the value of density of air as 1.225 kg/m³ and putting other given values in the formula we get

v = [tex]\frac{2\times (1.2\times10^{-5})^2(2182-1.225)}{9\times 1.8\times10^{-5}}[/tex]

v = 387 x 10⁻⁵ m/s

Terminal velocity = 387 x 10⁻⁵ m/s

Time taken to fall a distance of 100 m

= \frac{100}{387\times10^{-5}}

= 2.6 x 10⁴ s.

5 0
2 years ago
BRAINLEST TO SOMEONE WHO ACTUALLY ANSWERS AND FREE 100 POINTS TO REAL ANSWER 2. Using the average time, calculate the oscillatio
andrezito [222]

Answer:

IM SO SORRY :((

Explanation:

7 0
3 years ago
Read 2 more answers
Where is Ceres located
Vika [28.1K]
The coordinates are- <span>RA 19° 24' 0" | Dec 59° 0.000'

It is located in the asteroid belt between mars and jupiter :) 

</span><span>
</span>
4 0
3 years ago
Read 2 more answers
A 3kg book falls from a 2m tall bookshelf what is the speed <br><br> PICTURE included
mafiozo [28]

Answer:

39.2m/s

Explanation:

The potential energy the book has right before it falls is equal to the kinetic energy in falling.

PE = KE

mgh = (1/2)mv

2gh=v

v=(2)(9.81)(2)

v=39.24m/s

8 0
3 years ago
Other questions:
  • Is diet Pepsi heterogeneous or is it homogeneous
    8·2 answers
  • At take off, a plane flies 100 km north before turning to fly 200 km east. How far is its destination from where the plane took
    10·2 answers
  • Which of the following physical laws or principles can best be used to analyze the collision between the object and the pendulum
    5·1 answer
  • Two technicians are discussing disc brake rotor service. Technician A says that the inner races (bearing cups) should be removed
    15·1 answer
  • The table below compares the cost of living in Philadelphia
    11·2 answers
  • What is the maximum speed (in units of m/s) with which a car can round a
    10·1 answer
  • How many significant digits are in the following measurements?<br> a. 1300 m
    7·1 answer
  • Which famous scientist is associated with the force of gravity?
    8·1 answer
  • If the energy in a mechanical wave increases or decreases, what is also going to increase or decrease? A wavelength B amplitude
    10·1 answer
  • A 0.40 kg bead slides on a straight frictionless wire with a velocity of 3.50 cm/s to the right. The
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!