Question

the units of impulse or change in momentum are: check all that apply kg·m/s n·s m/s kg/(m/s) n/s

Explanation:

1. Momentum \( p = mv \), mass unit is \( kg \), velocity is \( m/s \), so momentum unit is \( kg\cdot m/s \). Impulse \( J = F\Delta t \), force \( F = ma \), unit \( N = kg\cdot m/s^2 \), so impulse unit \( N\cdot s=(kg\cdot m/s^2)\cdot s = kg\cdot m/s \).
2. \( m/s \) is velocity unit, \( kg/(m/s) \) and \( N/s \) don't match impulse/momentum units.

Answer:

• \( \boldsymbol{kg\cdot m/s} \)
• \( \boldsymbol{N\cdot s} \)