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
Leya [2.2K]
3 years ago
10

A commuter backs her car out of her garage with an acceleration of 1.40 m/s2.A) How long does it take her to reach a speed of 2.

00 m/s?B) If she then breaks to a stop in 0.800 s, what is her deceleration?
Physics
1 answer:
AURORKA [14]3 years ago
4 0

Answer:

(A) 1.43secs

(B) -2.50m/s^2

Explanation:

A commuter backs her car out of her garage with an acceleration of 1.40m/s^2

(A) When the speed is 2.00m/s then, the time can be calculated as follows

t= Vf-Vo/a

The values given are a= 1.40m/s^2 , Vf= 2.00m/s, Vo= 0

= 2.00-0/1.40

= 2.00/1.40

= 1.43secs

(B) The deceleration when the time is 0.800secs can be calculated as follows

a= Vf-Vo/t

= 0-2.00/0.800

= -2.00/0.800

= -2.50m/s^2

You might be interested in
Convert an acceleration of 12m/s^2 to km/h^2​
ozzi

Answer:

43.2

because to convert from m/sec to kmph we need to multiply by 3600/1000

4 0
3 years ago
4. What is the momentum of a 70 kg object traveling at 20 m/s?
Soloha48 [4]

Answer:

1400 units of momentum.

Explanation:

Using the formula p=mv. We can get the momentum using 70*20 =1400 units of momentum

6 0
3 years ago
¿Quien desarrolló el método físico experimental?
Viefleur [7K]

Answer:

Explanation:

El 15 de febrero de 1564 nacía Galileo Galilei (1564-1642). Galileo Galilei es una de las figuras claves de la historia de la Ciencia, pudiéndosele considerar el primero que aplicó el método científico experimental-matemático.

7 0
3 years ago
Please help me out !!!!!!
nikdorinn [45]

Answer:

89

Explanation:

8 0
3 years ago
I need help answering 30A and B. Help a guy out?
dmitriy555 [2]

Uh so I'm no master at this subject, but all stuffs accelerate at 9.8 m/s squared. So you multiply the 9.8 and the 0.20 it's given for reasons unknown other than that's what I see in my notes... and that gives you 1.96 m/s squared.

As for B, I have no idea. I think you may multiply the 1.96 by 4. Tell me your thoughts and maybe we can work it out together

5 0
3 years ago
Other questions:
  • 100 POINTS PLEASE HELP ASAP!!!!
    8·2 answers
  • A millimeter is _______ meter(s).<br><br> A. 1,000<br> B. 100<br> C. 1/100th<br> D. 1/1,000th
    13·1 answer
  • Make the following conversion
    8·1 answer
  • PLEASE HELP!!!!
    10·1 answer
  • The ease with which a memory can be retrieved is influenced by all of the following EXCEPT
    10·2 answers
  • A positive point charge q1 = +5.00 × 10−4C is held at a fixed position. A small object with mass 4.00×10−3kg and charge q2 = −3.
    6·1 answer
  • Some birds migrate 20,000 miles. If 1 mile equals 1.6 kilometers, calate the distance these birds fly in kilometers.
    6·1 answer
  • How to find the distance between two parallel lines?
    5·1 answer
  • Which form of the law of conservation of energy describes the motion of the block when it slides from the top of the table to th
    9·1 answer
  • You are assigned to do some calculations for a movie stunt that involves a car on a straight road. The road, pictured above, has
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!