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
Aleks [24]
4 years ago
13

A skier has an acceleration of 2.5 m/s2. How long does it take her to come to a complete stop from a speed of 18 m/s?

Physics
2 answers:
Andrej [43]4 years ago
8 0
A = 2.5 m/s²

since , we have to stop so v = 0 m/s ( final velocity)

u = 18 m/s

t = ?

using ,

⇒ v = u + at

⇒ 0 = 18 + 2.5t

by this we are getting t<0 , since , t cant be -ve , Check your question
aleksandr82 [10.1K]4 years ago
4 0
(Assuming acceleration is -2.5m/s2) 7.2 seconds.
You might be interested in
A sample from a meteorite that landed on Earth has been analyzed, and the result shows that out of every 1,000 nuclei of potassi
Lera25 [3.4K]
I just did 1,000 nuclei divided by 250 and got 4.
The answer is 4 years.
Hope this helps!
Please give Brainliest!
5 0
2 years ago
If you know about Bowling please help me1-4!! (this is P.E)
Step2247 [10]
1 is c
2 is false
3 false
4 i think is c ont 100% though
4 0
3 years ago
g (15 points) Picture taken from problem 13-35. A 2000 kg truck is traveling at 25 meters/second. The driver suddenly hits the b
otez555 [7]

Answer:

Δx = 3.99 m

Explanation:

To determine distance, use kinetic energy

will make it short and easy.  

KE=1/2mv2 and KE=Δxmgμ

 

Set the equations equal to each other

1/2mv2=Δxmgμ            (Note: The masses cancel )

 1/2v2=Δxgμ                  Solve for Δx

where g=9.8  

Δx=v2/(2gμ)                   Δx = 25 / (2 * 9.8 * 0.32)     Δx = 3.99 m

Please let me know if its correct, if not report it so we can correct it.

6 0
4 years ago
If a 25kg mass is dropped from a height of 5 meters what’s the work done by gravity
Elanso [62]

Answer:

Explanation:

M = 25kg

h = 5m

g = 9.8m/s2

Work done = mgh

Work done = 25 x 9.8 x 5

Work done = 1225J

8 0
3 years ago
An object is in circular motion. How will the object behave if the centripetal force is removed?
iren2701 [21]
It will be launched in the direction it was going in when the centripetal force is removed

4 0
3 years ago
Other questions:
  • Without friction, what force is needed to maintain a 1,000 kg car in uniform motion for 30 minutes?
    13·1 answer
  • Which type of wave has the longest wavelength?
    12·2 answers
  • Which of the following causes a precipitate to form?
    10·2 answers
  • A temperature of 20°c is equivalent to approximately
    11·2 answers
  • If you place a free electron and a free proton in the same electric field, how will the forces acting on them compare? How will
    11·1 answer
  • You buy a 75 watt light bulb. the label means that
    12·1 answer
  • What is the rate of heat transfer by radiation, with an unclothed person standing in a dark room whose ambient temperature is 22
    15·1 answer
  • A parachuter, falling with a constant speed, drops 456m in 14.4s.
    13·1 answer
  • You kick a soccer ball with a speed of 12 m/s at an angle of 21. How long does it take the ball to reach the top of its trajecto
    10·2 answers
  • 25 points. Pls, hurry, What happens to the energy of a wave if the amplitude of the wave is doubled?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!