Question

Plz make me understand this topic and the formula written on it.plz......I have my exam after 1hr

Answer 1

Answer:

Explanation:

These are the formulas from Rotational dynamics and these are very easy if you know the trick.

• Centrifugal force acts on an object rotating circularly and usually acts away from the center and Centripetal force acts towards the centre.
• Tangential acceleration is perpendicular to centripetal force (a)=rα

• The Formula for centripetal acceleration is (a)=v²/r

         v=rω

              (v→velocity of object , r→radius of circular body

               ω→angular velocity)

• Another formula for ω=θ/t

         θ→position angle , t→time taken

• Angular acceleration = ω/t=θ/t²