Question

A particle of mass 'm' is rotating in a horizontal circle of radius 'r' with unifom1 velocity `vec"V"`. The change in its momentum at two diametrically opposite points will be ______.

विकल्प

• `-"m"vec"V"`

• `-2  "m"vec"V"`

• `"m"vec"V"`

• `3  "m"vec"V"`

Answer 1

A particle of mass 'm' is rotating in a horizontal circle of radius 'r' with unifom1 velocity `vec"V"`. The change in its momentum at two diametrically opposite points will be `underline(-2  "m"vec"V")`.

Explanation:

mv - (-mv) = 2mv