The vector, the x-component and the y-component form a rectangle triangle where the vector is the hypothenuse and the x and y components are the two sides.
Calling
the angle between the vector and the horizontal direction (x), the two sides are related to
by
where vy and vx are the two components on the y- and x-axis. Using vx=10 and vy=3 we find
And so the angle is
a. The disk starts at rest, so its angular displacement at time is
It rotates 44.5 rad in this time, so we have
b. Since acceleration is constant, the average angular velocity is
where is the angular velocity achieved after 6.00 s. The velocity of the disk at time is
so we have
making the average velocity
Another way to find the average velocity is to compute it directly via
c. We already found this using the first method in part (b),
d. We already know
so this is just a matter of plugging in . We get
Or to make things slightly more interesting, we could have taken the end of the first 6.00 s interval to be the start of the next 6.00 s interval, so that
Then for we would get the same .
4.0 ilynits per second Alaskan es muy du facial in the oscillates 1.99
The answer is actually 36 J.
Hope this helped :)
Brainliest?
Answer:
A: 3 Mg, 2 P, 14 O, 12 H
Explanation:
I took the test on Edgenuity