Question

Q11. Find the magnitude of the centripetal acceleration of a particle on the tip of a fan blade, 0.30 metre in
diameter, rotation at 1200 rev/minute
a) 40 m/s?
b) 4737.6 m/s?
c) 245 m/s
d) 20 m/s
one round in 1ls, calculate the total​

Answer 1

Answer:

Your options are wrong

a = w ^2(angular velocity ) ×r

r = d/2

r = 0.15

Explanation:

n /minute = 1200

n/sec = 1200/ 60

= 20

w = 2 × 22/ 7 ( pi ) × n

w = 44/7 × 20

w = 125.71

a =( 125.71)^2 × 0.15

a = 2370.4 m/s^2