Question

Figure below shows a body of mass M moving with uniform speed v along a circle of radius R. What is the change in speed in going from P₁ to P₂

• A. Zero
• B. $\sqrt{2v}$
• C. $v/\sqrt{2}$
• D. $2v$

Answer 1

Answer: (A)

Zero

Answer 2

In uniform circular motion speed remain constant.

$\therefore$change in speed is zero.