An automobile travelling with an initial velocity of 25m/s is accelerated to 35m/s in 6 second. The wheel of automobile is 80cm in diameter. Find the angular acceleration

Answer 1

radius= .4m

wi=25/.4 wf= 35/.4

angacceleration= (wf-wi)/time

Answer 2

From the Eqn of motion we have: v=u+at
=25+35*6
=360m/s
recall that angacceleration=v^2/r
r=40m,
=360^2*40
=3240m/s^2