Question

A hockey player applies an average force of 80N to a 0.25kg hockey puck for a time of 0.2s. Determine the impulse experienced by the hockey puck.

Answer 1

16 Ns

Step-by-step explanation:

The answer above is correct.

Answer 2

16 Newton-seconds

Step-by-step explanation:

Impulse,
`\widehat{J}`, is given by
`\widehat{J}=F\Delta t`, where
`F` is the magnitude of a force that has been applied for
`\Delta t` seconds.

Given
`F=80\text{ N}` and
`\Delta t = 0.2\text{ s}`, we have:

`\widehat{J}=80 \cdot 0.2 = \boxed{16\text{ Ns}}`