Question

what is centripetal force ?
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Answer 1

Answer:

centripetal force

Explanation:

if a particle is in uniform motion ,there must be centripetal acceleration towards the center of the circle . if there is acceleration then there must be some force acting on it with respect to  an inertial frame .

Answer 2

EXPLAINITION:

a centripetal force is defined as ,

a component of force acting on an object in curvilinear motion which is directed towards the axis of rotation or centre of curvature .

the unit of centripetal force is Newton .

the centripetal force is always directly proportional to the direction of the displacement of an object .

the Centripetal Force Formula is given as the product of mass ( in kg ) and tangential velocity ( in meter per second ) squared , divided by the radius ( in meters ) which implies that on doubling the tangential velocity the centripetal force will be quadrupled .

mathematically it is written as :

$f = m {c}^{acc} {}^{} = \frac{m {v}^{2} }{r}$

where ;

• f is centripetal force
• m is mass of the object
• c^acc is centripetal acceleration
• v is velocity or the speed of the object and
• r is radius

Examples :

• spinning a ball on a string
• turning a car
• going through a loop on a roller coaster

and the most common and important example is

• the planets orbiting around the sun

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