Rotation

If a body of mass m is in uniform circular motion with speed v and radius r, then the force acting on it has magnitude F = mv2 / r and is directed towards the centre of the circle. This is termed a "centripetal" (meaning "centre-seeking") force.

To decrease the magnitude of the centripetal force, you must therefore either decrease the mass of the body, decrease the orbital speed, or increase the radius of the orbit.

Yes. If an object is at rest or in a linear motion state at constant speed, the net force applied onto the object is zero.

Ypu would need to pull twice as hard on the string to keep going the same speed. Ypu would need to pull twice as hard on the string to keep going the same speed.

The "intrinsic angular momentum" of particles is commonly called "spin". The spin of a photon is 1, in the units commonly used.

Yes, angular velocity is a vector quantity

Archimedes work on levers brought about the concept of torque. He used levers and pulleys to illustrate mechanical advantage. Torque and moments make us understand the mechanical concepts.

Torque is the the force required to move a body about its fulcrum. The starting Torque is the force required to move the body from 0 rpm to the stipulated rpm, the Running torque is the force required to maintain the rpm.

The Starting torque is often higher than the running force.

Imagine peddling a push bike with one gear (say the one gear is a high gear), the force required to set off will be relatively high in comparison to the force you exert in order to maintain a velocity.

pulsar

Always centrifugal is the reaction force for centripetal

no where did u get that?

:> In theory Yes. Professor Von Fôgg during a 1932 Paper titled 'Physical influences of Spacial Matter' proposed that following research of the Chaos theory (AKA Butterfly Effect), a person standing in one place spinning around in a circle could create a knock-on effect whereby a person who is standing at exactly the opposite side of the earth can feel the effects of the spinning becoming dizzy and even possibly nauseous. Of course the probability of one person standing on the opposite side of the earth whilst someone spins in one place is highly unlikely, thus further research into this proposal is still required.

rotation is a type of motion in this all the components follow a circular path

Depends on the engine that is turning 1,000 rpm's. A larger engine develops way more horsepower than a small engine at 1,000 rpm's.

In the same manner that we sleep while our beds are burning.

Through the axis of the circular end it is MR2, but the middle of the cylinder length wise is (1/2)MR2 + (1/12)ML2

no force, just angular momentum which is conserved.

Centripetal force is = mass * velocity square divided by radius

If you carry a bucket with say 1 inch of water, & you hold it the handle & down by your leg, you can do a centrifugal experiment. Hold tight to handle. Pretend your arm is the arm of an analog (older style) clock. Your goal is to spin the bucket of water in a Vertical circle w/o spilling any water. Tip: to develop enough speed you may have to swing the bucket forward & back a couple times. Keep in mind that generally your carrying arm will not be bent at the elbow (ie. keep arm fully extended, as much as

you can. I suggest you try this ONLY w/water & outside, for obvious reasons. Good luck!

The centripetal force is the force with which the centrifuge pushes some object inwards. The opposite force, of course, is the object pushing the centrifuge outwards.

Not exactly. Rotational symmetry means that a shape will look the same if the object is rotated around some axis, by ANY angle.There are no specific requirements as to where the axis must be.

The main difference is that, while both rotate, the wheel has an additional translational movement. That is, the entire wheel moves forward.

if the angular speed of an object increase its angular momentum will also increase

There are 4 bolts that hold the seat on that need to come off. First, you'll need a Phillips head screwdriver to remove two plastic panels, one of which is by the gear shift lever, and the other by the carb. With these panels removed, you'll have access to the front two (10MM) seat bolts. The one on the carb side is tough to get to. Having a helper bend back the plastic seat pan will make it easier. The rear seat bolts are accessed under the rear fenders. Once these bolts are out, lift the seat off, and you have full access to the battery.

Hi,

Well the force is centripetal force during a body is initially attacked by the tornado,when the body started swinging in the tornado from the surface of the earth,the time when body covers some distance from downward to upward is the time when centrifugal force is applied.... That means tornado have both the centripetal force and centrifugal force.....

Thanks you!

Most Java objects seem to be 32KB and are located under your downloaded programs.

If you double click on your "My Computer" icon then double click on "Local Disk (C:) " there you should find an area with a "Windows" folder double click on that and there should be a "Downloaded Programs" folder in which if you double click on that you will be able to then see your Java objects - OR - instead of going into the "Windows" folder you could double click on the "Programs" folder and there will be a "Java" folder in there (which ever you prefer).

No.