At what speed should a hockey puck with a mass of 160g fly so that its impulse is equal to that of a bullet

At what speed should a hockey puck with a mass of 160g fly so that its impulse is equal to that of a bullet with a mass of 8g, flying at a speed of 600m / s?

Decision:
m (ch.w) = 160g 160g = 0.16kg m (ch.w) v (ch.w) = m (n) v (n)
m (n) = 8g 8g = 0.008 kg v (h.w.) = m (n) × v (n) / m (h.w)
v (p) = 600 m / s (substitute values)
0.008kg × 600m / s / 0.16kg = 30m / s
Answer: the hockey puck must fly at a speed of 30m / s.