Asmall 20-kg canoe is floating downriver at a speed of 2 m/s. what is the canoe’s kinetic energy? 80 j 18 j 40 j 400 j

The answer is: 40 J.

To solve this problem you must apply the proccedure shown below:

1. You have the following formula that is used to calculate the kinetic energy:

Where m is the mass of the objetct and V is the speed.

2. Substitute values into the formula:

3. Therefore, the result is:

A Physics student on the river bank, watching the canoe float by, says that its kinetic energy is (1/2 m v²) = 40 Joules.

A Physics student in another canoe, floating alongside the first one, says that its kinetic energy is zero.

Both students are correct, each one for his own frame of reference.

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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h o h o hope you have a merry christmas!