Solution) (3) Time T = 365.25 days
Here we have time T in days so we should convert it into seconds as shown below
T = 365.25 days
1 day = 24 hours (1 hour =60minutes)
1 day =24 × 60 minutes ( 1 minute =60 seconds)
1 day =24×60×60 seconds
T = 365.25 × 24×60×60 seconds
T = 31557600 seconds
Therefore average angular speed w = (2(pi))/(T)
w = ( 2×3.14)/(31557600)
w = 0.000000199 rad/s
w =0.199×10^(-6) rad/s
(4) radius r =0.1m
Angular speed w=10rad/s
Speed V = rw = 0.1×10=1m/s
V= 1m/s
Acceleration a = (V^2)/(r)
a = (1^2)/(0.1)
a= 10 m/s^2
Therefore V= 1m/s and a =10m/s^2
Option (3) is correct
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