Question

A cycle wheel is rotating at the speed of 120 r.p.m.
If the diameter of the wheel is 80 cm, the linear
velocity of a mid point of the spoke is
a) 3.2 t m/s
b) 1.6 m/s
c) 0.8 i m/s
d) 0.4 tt m/s​

Answer 1

Answer:

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A cycle wheel is rotating at the speed of 120 r.p.m.

If the diameter of the wheel is 80 cm, the linear

velocity of a mid point of the spoke is

a) 3.2 t m/s

b) 1.6 m/s✔

c) 0.8 i m/s

d) 0.4 tt m/s

Answer 2

Explanation:

n=2rps. D=80cm. =0.80cm. r=0.40cm and it menson mid point of spoke so, radius get half . r/2=0.20cm. v=rw v=0.20×2πn. v=0.20×2×π×2. v=0.8π. m/s