The average speed is a scalar quantity. The average speed of the skier is 10 km/hrs.
<h3>
What is the average speed?</h3>
It is calculated by dividing the total distance by the total time elapsed.
The
Where,
= average velocity
= displacement = 7.5 km
= change in time = 45 min = 0.75 hours
Put the values in the formula,
Therefore, the average speed of the skier is 10 km/hrs.
Learn more about average speed:
https://brainly.in/question/32459982
By the work-energy theorem, the total work done on the car is equal to the change in its kinetic energy:
<em>W</em> = ∆<em>K</em>
<em>W</em> = 1/2 (0.34 kg) (22.9 m/s)² - 1/2 (0.34 kg) (6.5 m/s)²
<em>W</em> ≈ 82 J
So directly the cell density value in a rectangle is:
In this exercise, we must first calculate the area of the rectangle, remembering that you need to convert from nm to cm is:
Next, let's calculate the density from the calculated area:
In this way, the calculation represents that there is:
Learn more: brainly.com/question/18320053
Explanation:
S=(V^2-U^2)/2a a=g (gravity) a=10
=(0^2-25^2/2*(-10)
=625/20
=31.25m
Im not so sure but it should be the
instantaneous speed
