Question

write tha others names of
centripital
Force​

Answer 1

You may called it as centrifugal force, though they are different

Answer 2

Centripetal force is defined as: the force that is necessary to keep an object moving in a curved path and that is directed inward toward the center of rotation. Whilst centrifugal force is the force which is faced in an outward direction.

Now to understand it let us discuss some examples.

-The force of gravity acting on a satellite in the orbit.

-The friction of the tires of a car

AB=vt

When the time t is noticeably short, AB is almost a straight line and AOB is a triangle then triangles AOB and O’ab are similar.

Therefore,

abAB=Oa′OA

Or, abvt=vr

Since, (AB=vtandO′a=v,OA=r

)

Therefore,

abt=v2r

Or acceleration =v2r

…………(i)

We know that force is equal to mass multiplied by acceleration,

Therefore, Centripetal force =mv2r

……. (ii)

If ω

is the angular velocity, then v=rω

Therefore, centripetal force = mrω2

……. (iii)

If the body takes n number of turns in one second, then ω=2πn

Therefore,the expression of centripetal force is 4mrπ2n2

.