Object A: has a mass m and a speed v, Object B: has a mass m/2 and a speed 4v, and Object C: has a mass 3m and a speed v/3. Rank the objects according to the magnitude of their momentum.

Explanation:

We know that,

Momentum = Masss × Velocity

For object A,

Mass = m and  speed = v

Momentum = m × v = mv

For object B,

Mass = and  speed = 4v

Momentum = × 4v = 2mv

For object C,

Mass = 3m and  speed =

Momentum = 3m × = mv

∴ The rank of the objects according to the magnitude of their momentum = B > A = C

an electric circuit