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
nadya68 [22]
3 years ago
10

Two runners start a race. After 2 seconds, they both have the same velocity. If they both started at the same time, how do their

average accelerations compare?
Physics
2 answers:
djyliett [7]3 years ago
7 0

let each runner starts from rest

v₀ = initial velocity of each runner = 0 m/s

t = time of travel = 2 sec =

a = average acceleration

average acceleration is given as

a = (v - v₀)/t

inserting the values

a =  (v - 0)/t

a = v/t

since each runner gains equal amount of speed in given time interval of "t". hence the average acceleration of each runner is same.

arsen [322]3 years ago
3 0

Answer:

Two runners start a race. After 2 seconds, they both have the same velocity.  they both started at the same time, how do their average velocities compare? They have the same acceleration rate.

Explanation:

You might be interested in
Which of the following correctly describes the first animals that appeared?
Anettt [7]
A these were large creatures similar to dinosaurs
5 0
3 years ago
A 40.0 N crate is pulled up a 5.0 m inclined plane. The angle of inclination of the plane to horizontal is 37o. If there is a co
Digiron [165]

The net gain in potential energy by the crate is 120 J.

<h3>What is potential energy?</h3>

Potential energy is the energy that an object has stored in it as a result of its position or condition. Potential energy exists in a stretched spring, a book held above your head, and a bicycle on top of a hill. The joule, which is represented by the letter "J," is the standard unit for calculating potential energy.

<h3 /><h3>Calculation:</h3>

We use the idea of potential energy, which is given by the equation,

PE = mgh

where,

m = mass of the crate

g = gravitational acceleration

h = height

Given,

mg = 40 N

L = 5 m

angle of inclination, ∅ = 37°

h = L sin∅

h = 5 (sin 37°)

h = 5 (3/5)

h = 3 m

Put the values in the above formula,

PE = mgh

PE = 40 (3)

PE = 120 J

Therefore, the net gain in potential energy by the crate is 120 J.

<h3 />

Learn more about the calculation of work and force here:

brainly.com/question/28043403

#SPJ4

4 0
2 years ago
Which one of the following scenarios accurately describes a condition in which resonance can occur? A. A column of air has a hei
ollegr [7]
The correct option is D.
Resonance is a phenomenon in which a vibrating system or an external force induces another system to vibrate at greater amplitude at particular frequencies. 
When a tuning fork is struck with another object, the tuning fork will start to vibrate as a result of the force that is exerted by the object used to struck it. This type of vibration, without direct excitation by a man is an example of resonance.
8 0
4 years ago
I.Name two commonly used thermometric liquids.
PtichkaEL [24]

Answer:

mercury and alcohol

ii) used to test temperatures

6 0
3 years ago
Read 2 more answers
Two or more atoms can be held together through shared
Andre45 [30]

They can share electrons. By sharing, they form a covalent Bond and that way atoms can be stable.

4 0
4 years ago
Other questions:
  • An inductor is connected to a 18 kHz oscillator. The peak current is 70 mA when the rms voltage is 5.4 V What is the value of th
    6·1 answer
  • You can jump 3 m (10 feet) off of a diving board and into a swimming pool and be uninjured. However, if you jumped from the same
    7·1 answer
  • What physics concept underlies these three observations? When passing an oncoming truck on the highway, your car tends to sway t
    6·1 answer
  • What are some similarities between heat and temperature? 
    12·2 answers
  • A ball is thrown downward with an initial speed of 7m/s. the balls velocity after 3 seconds is m/s
    9·2 answers
  • How does the law of conservation of mass apply to this reaction:Al+3HCl--&gt;H2+AlCl3
    9·1 answer
  • You have to heat up a 1.000 gram ingot of aluminum from initial temperature Ti = 847 K to its melting point, 933 K. Calculate th
    9·1 answer
  • What type of smog is created when
    12·1 answer
  • Ten examples of non luminous objects​
    9·2 answers
  • Reclamation would be classified as a _____ human activity for the environment. Positive or negative?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!