Correct Answer - Option 1 : 1 rad/s
2
The correct answer is option 1) i.e. 1 rad/s2.
CONCEPT:
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Angular acceleration: It is the rate of change angular velocity of an object with respect to time i.e.
\(α = \frac{ω_{f}-ω_{i}}{t}\)
where,α = angular acceleration, ωf = final angular velocity, ωi = initial angular velocity, and t = time
CALCULATION:
Given,
initial angular velocity, ωi = 10 rad/s
final angular velocity, ωf = 20 rad/s
time, t = 10 second
Hence,
angular acceleration, α = (20-10)/10 rad/s2
⇒ α = 1 rad/s2.
