Answer:
α =
Explanation:
Applying the equations of motion to determine angular acceleration of the unit,
The sum of moments about O is equal to the product of angular acceleration and moment of inertia
∑Mo = Io*α
Taking the anticlockwise direction as positive moment,
= ( -(1150) + (1400) ) * (0.5 / 2) + ( (475) - (650) ) * (0.3 / 2) - F = Io*α
= 36.5 - (2.5 N.m) =*α
NOTE: moment of inertia of the pulleys in this instance =
Hence, 33.75 = * α
Solving, α =
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Objects with more mass has more gravity so, the closer objects are to each other the stronger gravitational pull. Hope this helps
The resultant velocity is 40.3 m/s at 7.1 degrees north of west
Explanation:
Jason's motion is divided into two parts.
At first, he moves west with a speed of
Then, he moves north with a speed of
The two velocities are at right angle, so they form the sides of a right triangle, and the magnitude of the resultant velocity can be calculated using Pythagorean's theorem:
And the direction can be found by using
So, 7.1 degrees north of west.
Learn more about vector addition here:
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