Question

The ratio of velocities at points A, B and C in vertical circular motion is

• A. $1:9:25$
• B. $1:2:3$
• C. $1:3:5$
• D. $1:\sqrt{3}:\sqrt{5}$

Answer 1

Answer: (D)

$1:\sqrt{3}:\sqrt{5}$

Answer 2

$v_{A}:v_{B}:v_{c} = \sqrt{gr}:\sqrt{3gr}:\sqrt{5gr}$

$\mathbf{= 1:}\sqrt{\mathbf{3}}\mathbf{:}\sqrt{\mathbf{5}}$