Question

A particle moves in a circular path with decreasing speed. Choose the correct statement

• A. Angular momentum remains constant
• B. Acceleration (a) is towards the centre
• C. Particle moves in a spiral path with decreasing radius
• D. The direction of angular momentum remains constant

Answer 1

Answer: (D)

The direction of angular momentum remains constant

Answer 2

$L=m(r\times v)$
Direction of $(r \times v),$ hence the direction of angular momentum remains the same.
$\therefore$ Correct answer is (d).