A particle moves in a circle of radius 2cm at a speed given bye V=4t where V is in cm/s and t is in second. Find the tengential acceleration at t=1 second.

Answer 1

If you are only looking at tangential acceleration (not centripetal) then only tangential velocity matters
v = 4 t cm/s * 1 m/100 cm
= .04 t m/s

tangential acceleration = dv/dt = .04 m/s^2

Answer 2

a partical moves on circular of radius 30cm its liner speed is given by v 2t find the radial and tangantial acclartion at t 3sec