Question

Question #444e5

Answer 1

we know centripetal acceleration `a_c)` is given by

`a_c=v^2/r`
where v = velocity and r = radius of circular path .

If radius changes from `r_1 ->r_2" where " r_2>r_1`

then change in centripetal acceleration

`Deltaa_c=v^2(1/r_1^2-1/r_2^2)=150^2(1/500-1/1000)=22.5ms^-2`