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
MatroZZZ [7]
1 year ago
13

Determine the kinetic energy of a 10 Kg roller coaster car that is moving with a speed of 2m/s.

Physics
1 answer:
skelet666 [1.2K]1 year ago
6 0

In this question all required information's are already provided. Based on these details the answer to the question can be easily determined. Let us now write down all the information's that are already given.

Mass of the roller coaster = 1000 kg

Velocity of the roller coaster = 20.0 m/s

We know the formula for finding the kinetic energy is

Kinetic energy = 0.5 * mass * (velocity) ^2

                      = 0.5 * 1000 * (20)^2

                      = 0.5 * 1000 * 400

                      = 200000 Joules

So the Kinetic energy of the roller coaster is 200000 joules.

i hope this helps you friend good luck on your quiz or lesson

You might be interested in
Using the
xxMikexx [17]

Answer:

The principle of momentum conservation states that if there no external force the total momentum of the system before and after the collision is conserved.

Since momentum is a vector, we should investigate the directions and magnitudes of initial and final momentum.

\vec{P}_{initial} = \vec{P}_{final}\\\vec{P}_{initial} = m_1\vec{v}_1 + 0\\\vec{P}_{final} = m_1\vec{v}_1' + m_2 \vec{v}_2'

If the first ball hits the second ball with an angle, we should separate the x- and y-components of the momentum (or velocity), and apply conservation of momentum separately on x- and y-directions.

6 0
2 years ago
Example 2.1
tatiyna

Answer:

5 min 20 km --------

Explanation:

5 min 20 km --------

8 0
2 years ago
A shot is fired at an angle of 60 degree horizontal with Kinetic energy E. If air resistance is ignored, the K.E at the top of t
Lapatulllka [165]
I'm not sure what "60 degree horizontal" means.

I'm going to assume that it means a direction aimed 60 degrees
above the horizon and 30 degrees below the zenith. 

Now, I'll answer the question that I have invented.

When the shot is fired with speed of 'S' in that direction,
the horizontal component of its velocity is    S cos(60)  =  0.5 S ,
and the vertical component is   S sin(60) = S√3/2  =  0.866 S .  (rounded)

-- 0.75 of its kinetic energy is due to its vertical velocity.
That much of its KE gets used up by climbing against gravity.

-- 0.25 of its kinetic energy is due to its horizontal velocity.
That doesn't change. 

-- So at the top of its trajectory, its KE is 0.25 of what it had originally. 

That's  E/4 .
3 0
2 years ago
I'm not an idiot so I'm pretty sure c and d are not the answers. I'm confused because don't they both do this. As it picks up sp
krok68 [10]
The answer is A because it's MOVING

ithink
8 0
3 years ago
Read 2 more answers
. Prior to Remy's trip to Cleveland, his uncle tells him about this amazing barbecue restaurant there and raves about
Andrews [41]

whats the restraunt called

6 0
2 years ago
Other questions:
  • Unit of speed is derived unit..why??<br>​
    8·2 answers
  • Which of the following accurately describes properties of valence?
    8·2 answers
  • On a certain map, every 3 cm represents 6 km on earth surface. Which ratio represents the scale of the map, which shows how the
    12·1 answer
  • Two identical air-filled parallel-plate capacitors C1 and C2 are connected in series to a battery that has voltage V. The charge
    13·1 answer
  • A safe weight loss plan recommends a weight loss of no more than __________ pounds per week
    7·2 answers
  • PLEASE HELP!!!! WILL GIVE BRAINLIEST!!! WORTH 20 PTS!!!!!
    15·1 answer
  • PLEASE HELP!!!!!!!!! 30 POINTS
    15·1 answer
  • If Mars were 10 times closer to the Sun, then the Sun would attract Mars with
    12·2 answers
  • If an 80 kg is running at 2m/s, what is this man's momentum?<br> Hint: p=mv
    10·1 answer
  • In the spectrum of a galaxy that is travelling away from Earth a hydrogen line is observed to be shifted from 394 nm to 450 nm.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!