Explanation:
A centripetal force (from Latin centrum, "center" and petere, "to seek") is a force that makes a body follow a curved path. (not sure but hope this helps )
Answer:
The result of force distributed over an area – Pressure = Force(in Newton's – N)/area (m 2 ) Pascal (Pa) – SI unit for Pressure – Named after.
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Answer:
false
Explanation:
I think I am right with this
Answer:
Approximately .
Explanation:
This question suggests that the rotation of this object slows down "uniformly". Therefore, the angular acceleration of this object should be constant and smaller than zero.
This question does not provide any information about the time required for the rotation of this object to come to a stop. In linear motions with a constant acceleration, there's an SUVAT equation that does not involve time:
,
where
- is the final velocity of the moving object,
- is the initial velocity of the moving object,
- is the (linear) acceleration of the moving object, and
- is the (linear) displacement of the object while its velocity changed from to .
The angular analogue of that equation will be:
, where
- and are the initial and final angular velocity of the rotating object,
- is the angular acceleration of the moving object, and
- is the angular displacement of the object while its angular velocity changed from to .
For this object:
- , whereas
- .
The question is asking for an angular acceleration with the unit . However, the angular displacement from the question is described with the number of revolutions. Convert that to radians:
.
Rearrange the equation and solve for :
.