Answer:
the ratio of Hank's mass to Harry's mass is 0.7937 or [ 0.7937 : 1
Explanation:
Given the data in the question;
Hank and Harry are two ice skaters, since both are on top of ice, we assume that friction is negligible.
We know that from Newton's Second Law;
Force = mass × Acceleration
F = ma
Since they hold on to opposite ends of the same rope. They have the same magnitude of force |F|, which is the same as the tension in the rope.
Now,
Mass × Acceleration = Mass × Acceleration
so
Mass / Mass = Acceleration / Acceleration
given that; magnitude of Hank's acceleration is 1.26 times greater than the magnitude of Harry's acceleration,
Mass / Mass = 1 / 1.26
Mass / Mass = 0.7937 or [ 0.7937 : 1 ]
Therefore, the ratio of Hank's mass to Harry's mass is 0.7937 or [ 0.7937 : 1 ]
Parallel is the correct answer!!!
Answer:
a) , b) , c) ,
Explanation:
a) The angular motion is obtained by integrating the angular acceleration function twice:
The angular motion when t = 2 s. is:
b) Let be the distance between A and the rotation axis, measured in meters. The magnitude of the angular velocity when t = 2 s. is:
Finally, the magnitude of the velocity is:
c) The angular acceleration of the disk when t = 2 s. is:
Lastly, the normal and tangential components at point A are, respectively: