Question

a particle moves in a circle of radius 30cm. it's linear speed is given by v=2t where t is in second and v is in m/s. it's tangential and centripetal acceleration at 3s are​

Answer 1

Answer:

220ms2,50m/s2

100m/s2,5m/s2

120m/s2

110m/s2,10m/s2

Answer :

C

Solution :

R=0.3m,v=2t

At t=3s,v=6m/s

ac=v2R=(6)20.3=360.3=120m/s2

v=2t

at=dvdt=2m/s2