If an object whose mass is 3kg moves in a circular path of a radius 0.7m, records a speed at 2m/s. What is the result of the angular velocity?
A
4 rads–1
B
1rads–1–1
C
3–1rads–1
D
4rads–1–1
Verified Correct Answer: C.
Physical Principles & Numerical Solution
M= 3kg, r = 0.7m, v = 2m/s
v = wr
w = angular velocity
r = radius in an tangential circular
v = speed of an object
W = V/δ = 2/ 0.7 = 2.85
W = 2.853rads–1 (total interest whole number)
W = &approx.; 3rads–1Angular velocity (w) = 3rads–1
Source: Myschool Past Questions Archive (Record #40867)