## Conceptual Physics (12th Edition)

a. The impulse is the change in momentum. Using an equation from page 93, solve for the force. Let's deal only with the magnitudes of these quantities. $$Ft = \Delta (mv) = mv$$ $$F = \frac{mv}{t}$$ b. Using the above equation, find the average force: $$F = \frac{mv}{t} = \frac{(1 kg)(2 m/s)}{0.2 s} =10 N$$