a car accelerates for 5 seconds at 2.1 m/s squared if the car intentionally has a speed of 10 m/s what is its new speed

Answers

Answer 1
Answer:

Answer:

final velocity will be

v_f = 20.5 m/s

Explanation:

As we know that initial speed of the car will be

v_i = 10 m/s

acceleration of the car is

a = 2.1 m/s^2

time taken is

t = 5 s

now we know that

v_f = v_i + at

v_f = 10 + (2.1* 5)

v_f = 10 + 10.5 = 20.5 m/s

Answer 2
Answer: Hey - for this problem you will find out your new velocity (similar to speed)

You take your Initial Velocity and add to it all the gained velocity you get during this process (which is the Acceleration multiplied by the amount of Time you are accelerating for)

So we get (Final Velocity) = (Initial Velocity) + (Time)(Acceleration)

In your equations, thats (Final Velocity) = (10 meters/second) + (5 seconds)(2.1 meters/second/second)

Which is 10 + 10.2 = 20.2 meters/second

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Is newton third law accurate for electric forces?

Answers

An object with greater charge will exert a greater force on an object than an object with smaller charge would. However, if you consider two charges that exert a force on each other, regardless of the magnitude of charge, both charges will exert an equal force on each other because of Newton's third law.

The solar system formed from the A. collapse of an interstellar cloud.  
 B. grouping together of asteroids. 
C. explosion of an interstellar sun.   
D. collision of two massive stars

Answers

A. Collapse of an interstellar cloud.
The answer is A. collapse of an interstellar sun. This is called the Nebular Hypothesis.

Which of the following is a form of mechanical energy?a. internal energy
c. gravitational potential energy
b. chemical potential energy
d. electrical energy

Answers

Gravitational potential energy is a form of mechanical energy.

What is Gravitational potential energy?

Gravitational potential energy is the energy possessed or acquired by an object due to a change in its position when it is present in a gravitational field.

If an object is at rest and doesn't involve elastic energy, then mechanicalenergy can be equal to gravitational potential energy.

To learn more about Gravitational potential energy here

brainly.com/question/3884855

#SPJ2

Okay so i believe that potential energy is mechanical but there are two answers with potential energy in it. Its a tough one but I think I would go with gravitational potential energy. Hope this helped!

A turntable is designed to acquire an angular velocity of 32.4 rev/s in 0.5 s, starting from rest.Find the average angular acceleration of the turntable during the 0.5 s period.
Answer in units of rad/s2

Answers

Well, the acceleration is the difference of speeds divided by the time period. (32.4)/(0.5)=64.8rev/s^2.
One rev/s is 2\pi rad/s^2, so our final result is 64.8*2\pi=407.15rad/s^2.

Answer:

not sure lol

Explanation:

ummmmmm look it up on peersanswer.com

Which astronomer spent 20 years plotting the positions of the planets

Answers

Answer

Tycho Brahe

Explanation

Tycho Brahe who was born on 1546. He was an astronomer.Tycho Brahe spent 20 years in plotting the positions of the planets and he was among those astronomers who helped in giving the  heliocentric model of the universe..

That was Tycho Brahe, and I thought it was actually more years than that.

A car has a speed of 2 m/s and a mass of 1500kg. What is the car’s kinetic energy

Answers

Answer:

3,000 m/s

Explanation:

3,000 m/s