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
beks73 [17]
2 years ago
9

two objects, x and y, accelerate from rest with the same constant acceleration. object x accelerates for twice the time as objec

t y. which of the following is true of these objects at the end of their respective periods of acceleration?
SAT
1 answer:
Nana76 [90]2 years ago
7 0

Answer:

X has travelled 4 times as far as Y

X is moving 2 times as fast as Y

Explanation:

Because x=1/2at²(get rid of the first portion of x=vt+1/2at² because initial v is 0 which multiplies to 0). If the acceleration is set to for example 10 (keep this constant for both X and Y) and we use t=1 and t=2 for time (as the time travelled of X is twice that of Y). Plugging this into the equation, at t=1, x=4. At t=2, x=20. 20 is four times greater than 5, so X has travelled 4 times as far as Y.

To find the difference in speed between the two objects, use the equation v_{f}=v_{0} +at. Since the initial velocity is 0, that part can just be removed from the equation. With v=at, it is easy to see that if the time plugged in is twice for one than the other (and the acceleration is the same for both), the final result will be twice of the other as well. For example: If the acceleration is 10 again for both, then v=10t. If t is 1, the velocity is 10. If t is 2, the velocity is 20.

You might be interested in
Which of the following is a technique to improve internal validity
3241004551 [841]

The technique to improve internal validity is D) Addition of a control group.

<h3>What is internal validity?</h3>

Internal validity  serves as the  study  which bring about the establishment of a trustworthy cause-and-effect relationship  that can be found in treatment and an outcome.

it should be noted that  Internal validity also helps to eliminate alternative explanations , hence, The technique to improve internal validity is D) Addition of a control group.

Learn more about internal validity on:

brainly.com/question/968894

#SPJ1

COMPLETE QUESTOIN:

Which of the following is a technique to improve internal validity ____________?

A) Experimenter expectancy

B) Participant bias

C) Use of a confederate

D) Addition of a control group

4 0
2 years ago
What is the most years one can be a presidnt fpr
RSB [31]
Actually they just said it is 4 years at the maxinmum
4 0
3 years ago
Name the law that applies to a driver while driving in the rightmost lane in the pictures?.
kotykmax [81]

There re a lot of laws. The law that applies to a driver while driving in the rightmost lane in the pictures attached is the move over law.

<h3>What is the Move Over Law?</h3>

This is known to be a law that  requires you to Move Over a lane. Here,  one can safely do so due to the fact that they have stopped law enforcement, emergency, sanitation, etc.

A Move Over law is a also known as a law which requires any motorists to move over and change lanes so as to get a safe clearance to law enforcement officers, firefighters, etc.

Learn more about Law from

brainly.com/question/26264191

7 0
2 years ago
You know sans. That's why you are here. I have to know. Is sans God ?
uysha [10]

Answer:

Yes daddy

Explanation:

7 0
3 years ago
In a class of 25 students 15 have a cat.
wolverine [178]
10 students do not have a cat
5 0
2 years ago
Other questions:
  • In The Pros and Cons of Plastics, explore how the economy (the way materials are made, sold, and bought) is affected by using an
    8·2 answers
  • The graph of a parabola in the xy-plane has
    8·1 answer
  • If you rub a balloon on a piece of fabric or carpeting and then hold it against your head, your hair can stand on end.
    13·1 answer
  • In a parking lot, 20% of the vehicles are trucks
    12·1 answer
  • Choose The corect opion Her promoțio Was The momente of Her lifer​
    9·1 answer
  • What is the remainder when (x4 36) is divided by (x2 – 8)? 36 64 100 117
    5·1 answer
  • Which statement best describes how Wells conveys his purpose with this excerpt? He creates powerful visual images. He appeals to
    9·2 answers
  • Which best summarizes the central idea in the excerpt? tan is troubled by the way her mother uses the english language. tan is u
    14·1 answer
  • If I don’t submit my sat score to sat optional colleges that are competitive will I be at a disadvantage?
    10·1 answer
  • Distinguish between catabolism and anabolism giving an example of each
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!