Question

which graph shows the relationship between kinetic energy and speed?

Answer 1

Answer:

The fourth graph looks like the most accurate in the relationship with friction and speed.

Explanation:

As the speed of a certain object is going, the friction should also be high aswell. As such as the object slows down the friction will also lower.

Answer 2

The graph that represents the relationship between kinetic energy and speed is required.

Option (2) is correct.

m = Mass of object

v = Velocity of object

Kinetic energy is given by

$K=\dfrac{1}{2}mv^2$

$\dfrac{1}{2}m$ is constant so the graph will be a parabola.

The vertex will be at the origin.

The kinetic energy will increase with increase in speed.

The first graph shows a straight horizontal line this means that for increasing speed kinetic energy remains same. This is wrong.

The second graph is a parabola with vertex at origin and shows increasing kinetic energy for increasing speed. This is correct.

The third graph is a parabola which has vertex not on the origin. This is wrong.

The fourth graph is shows decreasing kinetic energy with increasing speed. This is wrong.

Learn more:

https://brainly.com/question/12669551

https://brainly.com/question/17858145