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
topjm [15]
3 years ago
10

an object at rest starts accelerating if it travels 30 meters to end up going 10 m/s what was it’s acceleration

Physics
1 answer:
vfiekz [6]3 years ago
3 0

First we have to calculate the time taken to travel the distance 30 m, is

t = \frac{distance}{velocity} = \frac{30 \ m}{10 \ m/s } =  3 \ s.

Now from equation of motion,

v = u + at

Given, v = 10 \ m/s .

As object starts from rest, so  u = 0.

Substituting these values in above equation, we get

 10 \ m/s = 0 + a \times 3 \ s \\\\ a = \frac{10}{3}  = 3.33 \ m/s^2.

Thus, the acceleration is 3.33 \ m/s^2

You might be interested in
Two people stand facing each other at a roller skating rink then push off each other. a). What is the momentum of the system bef
Semenov [28]

Explanation:

hindi ko po alam yun e show pic mo

8 0
2 years ago
Upper A 16​-foot ladder is leaning against a building. If the bottom of the ladder is sliding along the pavement directly away f
Sav [38]

Answer:

The ladder is moving at the rate of 0.65 ft/s

Explanation:

A 16​-foot ladder is leaning against a building. If the bottom of the ladder is sliding along the pavement directly away from the building at 2 ​feet/second. We need to find the rate at which the top of the ladder moving down when the foot of the ladder is 5 feet from the​ wall.

The attached figure shows whole description such that,

x^2+y^2=256.........(1)

\dfrac{dx}{dt}=2\ ft/s

We need to find, \dfrac{dy}{dt} at x = 5 ft

Differentiating equation (1) wrt t as :

2x.\dfrac{dx}{dt}+2y.\dfrac{dy}{dt}=0

2x+y\dfrac{dy}{dt}=0

\dfrac{dy}{dt}=-\dfrac{2x}{y}

Since, y=\sqrt{256-x^2}

\dfrac{dy}{dt}=-\dfrac{2x}{\sqrt{256-x^2}}

At x = 5 ft,

\dfrac{dy}{dt}=-\dfrac{2\times 5}{\sqrt{256-5^2}}

\dfrac{dy}{dt}=0.65

So, the ladder is moving down at the rate of 0.65 ft/s. Hence, this is the required solution.

8 0
3 years ago
What parameters affects the inductance of a coil​
Kazeer [188]

Answer:

Number of Wire Turns in the Coil.

Explanation:

The greater the number of turns of wire in the coil, the greater the inductance. Fewer turns of wire in the coil results in lesser inductance. More coils of wires indicate a greater amount of magnetic field force for a given amount of coil current.

4 0
2 years ago
How is the wavelength of a longitudinal wave determined?
astraxan [27]

Answer:

Wavelength can always be found by measuring the distance between any two corresponding points on adjacent waves. In the case of a longitudinal wave, a wavelength measurement is made by measuring the distance from a compression to the next compression or from a rarefaction to the next rarefaction.

Explanation:

3 0
4 years ago
A television has a mass of 19 kg. What is the weight of the television?
soldi70 [24.7K]
That depends on how far it is from the nearest planet. If it's on the surface of Earth, it weighs (19 kg) x (9.8 m/s^2) = 186.2 newtons.
7 0
3 years ago
Read 2 more answers
Other questions:
  • The difference in ________ of p and s waves provides a method for determining the epicenter of an earthquake.
    7·1 answer
  • What equation relates mechanical energy, thermal energy, and total energy when there is friction present in a system?
    11·1 answer
  • What’s gravitational pull of the earth
    6·2 answers
  • An element's atomic number is 77. How many protons would an atom of this element have? protons
    11·2 answers
  • What determines the amount of current which will flow through a battery while it is being charged by a constant voltage source?
    14·1 answer
  • 6) A person with mass 50.0 kg, standing still, throws an object with mass 12.0
    9·1 answer
  • Which statement is true about the energy of electromagnetic radiation? A.the frequency of the emmited radiation is inversely pro
    13·2 answers
  • g What is the separation between their paths in meters when they hit a target after traversing a semicircle
    14·1 answer
  • show all work. a bus travels 100km/hr. it takes 6 hours to get from seattle to portland. how far away are the two cities?
    12·2 answers
  • Which of the following scenarios represents a safe situation for the child?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!