A mass on a spring is first placed on a table and set in SHM and then held vertically and set in SHM. What variable/s would chan
ge between the two scenarios?
1 answer:
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Answer:
α = 200*π rad/sec²
Explanation:
- If the disk drive revolves once every 0.05 sec, this means that the angular velocity can be expressed as follows:
- (just applying the definition of angular velocity)
- Now, it the disk started from rest, and took two revolutions to reach to full speed, assuming that the angular acceleration is constant, we can find the angular acceleration applying this kinematic equation:
- where Δθ, is the angle rotated while it went from rest to full speed, i.e., 2 revolutions, or 2*π rads.
- Replacing by the value that we found for ωf (as ω₀ = 0), we can solve for α :
Answer:
Acceleration of gravity=
Explanation:
Newton's Second Law-acceleration is proportional to the net force acting on an object.
All objects usually free fall at the same acceleration of -this regardless of their mass. This acceleration is known as acceleration of gravity.