![dimondqueen511](/avatars/8221.jpg)
dimondqueen511
16.09.2019 •
Physics
Acar moving with constant acceleration covers the distance between two points 60 m apart in 6.0 s. its speed as it passes the second point is 15 m/s. (a) calculate the speed at the first point. (b) calculate the acceleration. (c) at what prior distance from the first point was the car at rest?
Solved
Show answers
More tips
- F Food and Cooking How to Make Thin Pancakes: Recipe and Tips...
- S Style and Beauty Is Hot Scissor Haircutting Beneficial or Dangerous?...
- S Style and Beauty How to Get Rid of Under Eye Bruises?...
- F Food and Cooking Is Bacon Good for You?...
- S Style and Beauty Discover the Art of Nail Design: How Do You Paint Your Nails?...
- P Philosophy How to Develop Extrasensory Abilities?...
- O Other Everything You Need to Know About Kudyabliks...
- C Computers and Internet The Twitter Phenomenon: What it is and How to Use it...
- C Computers and Internet How to Choose a Laptop: Expert Guide and Tips...
- C Computers and Internet How to Choose a Monitor?...
Answers on questions: Physics
- P Physics 3. two capacitors c and 2c are connected to a battery. which capacitor stores more energywhen they are connected to the battery (a) in series or (b) in parallel? explain....
- P Physics 4. a 15 v battery is connected to three capacitors in series. the capacitors have the followingcapacitances: 4.54f, 12uf and 32uf. find the voltage across the 32uf capacitor....
- P Physics Ayan object is moving in a circle of radius 100m with aconstant speed for one complete revolution?...
- P Physics Se lanza una piedra de 3.00 N verticalmente hacia arriba desde el suelo. Se observa que, cuando está 15.0 m sobre el suelo, viaja a 25.0 m/s hacia arriba. Use el teorema...
- P Physics How is a good slide into a base performed?...
- P Physics What is responsible for the apparent motion of the moon in the sky from east to west?...
- P Physics Mitch holds a pumpkin at waist level. How can he add potential energy to the pumpkin?...
- P Physics What is the difference between velocity and acceleration? A. Velocity describes an object s position and acceleration describes how fast it moves. B. Velocity is how fast...
- S Social Studies Students must read passages from different school subjects and then draw conclusions or make comparisons and generalizations on the aspire test....
- S Social Studies Sarah and kim have a child that attends the first grade. they both love being involved in the school and so they work with the telephone hotline. together with other trained...
Ответ:
The speed in the first point is: 4.98m/s
The acceleration is: 1.67m/s^2
The prior distance from the first point is: 7.42m
Explanation:
For part a and b:
We have a system with two equations and two variables.
We have these data:
X = distance = 60m
t = time = 6.0s
Sf = Final speed = 15m/s
And We need to find:
So = Inicial speed
a = aceleration
We are going to use these equation:
We are going to put our data:
With these equation, you can decide a method for solve. In this case, We are going to use an egualiazation method.
If we analyze the situation, we need to have an aceleretarion greater than cero. We are going to choose a = 1.67m/s^2
After, we are going to determine the speed in the first point:
For part c:
We are going to use:
Ответ:
Os governantes africanos mantiveram e ditaram o controle e o suprimento de cativos ao comércio de escravos no Atlântico. O impacto do comércio foi aumentar as fortunas individuais no curto prazo. Mas, através da competição, os governantes poderiam ter seus poderes reduzidos, eliminados ou fortalecidos.
Explanation: