Question

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multiple choice question
what is the correct unit for impulse?

o n/s

o n·s

o n·m

o n/m

Explanation:

Step1: Recall Impulse Formula

Impulse (\(J\)) is defined as the product of force (\(F\)) and time (\(t\)), so \(J = F\times t\).

Step2: Determine Units

The unit of force (\(F\)) is the newton (\(N\)) and the unit of time (\(t\)) is the second (\(s\)). When multiplying the units, we get \(N\times s\) (or \(N\cdot s\)).

• \(N/s\) would be for a quantity related to force per unit time (not impulse).
• \(N\cdot m\) is the unit of work or torque (since work \(W = F\times d\), where \(d\) is distance in meters).
• \(N/m\) is a unit of force per unit length (e.g., for spring constant).

Answer:

B. \(N\cdot s\) (assuming the option with \(N\cdot s\) is labeled as B; if the options were labeled differently, adjust the identifier, but the unit is \(N\cdot s\))