Question

A particle starts form rest and its angular displacement (in radians) is given by $\theta=\frac{t^2}{20}+\frac{t}{5}$. If the angular velocity at the end of t = 4 is k, then the value of 5k is

• A. 0.6
• B. 5
• C. 5k
• D. 3

Answer 1

Answer: (D)

3

Answer 2

The correct answer is (D) : 3.