- #1
Grytviken
- 7
- 0
Say the force is 1g for an object rotating around an axis. If the object is a platform that is facing the center how would forces act on an item placed at different areas on the platform?
Thanks.
Thanks.
Grytviken said:Say the force is 1g for an object rotating around an axis. If the object is a platform that is facing the center how would forces act on an item placed at different areas on the platform?
Thanks.
ZapperZ said:First of all, "1 g" is mass, not "force" or weight.
Zz.
K^2 said:G is a unit of acceleration, not force.
And angle.rcgldr said:g is a rate of acceleration, G is a gravitational constant.
The rate of acceleration corresponds to speed2 / r. If the platform is flat, but orbiting around some central point, then speed and radius will be greater at the leading and trailing edges of the platform as opposed to the center.
I'm talking about units. g = 1G.rcgldr said:g is a rate of acceleration, G is a gravitational constant.
Centrifugal force is a fictitious force that appears to act on objects moving in a circular path. It is the outward force that is experienced by an object as it moves away from the center of rotation.
Centrifugal force is a result of inertia, which is the tendency of an object to resist changes in its motion. As an object moves in a circular path, it wants to continue moving in a straight line, but is constantly pulled towards the center by a centripetal force. The centrifugal force is the equal and opposite force to this centripetal force, pushing the object away from the center.
No, centrifugal force is not a real force. It is a fictitious force that only appears to exist due to the frame of reference in which the object is observed. In reality, the object is only experiencing a centripetal force towards the center of rotation.
Centrifugal force is not explicitly mentioned in Newton's laws of motion. However, it can be explained using these laws. The first law states that an object will remain in a state of rest or uniform motion unless acted upon by an external force. In the case of circular motion, the centripetal force acts as the external force that causes a change in the object's motion. The second law, F=ma, can also be used to calculate the magnitude of the centrifugal force.
Some common examples of centrifugal force include the feeling of being pushed to the side when a car turns, the water being pushed outwards in a spinning washing machine, and the sensation of being pulled towards the outside of a rotating amusement park ride. It is important to note that in these examples, the actual force acting on the objects is the centripetal force, but the centrifugal force is simply an apparent force.