Janell
1

# an object with a mass of 3kg has a momentum of 75 kg m/s what is its velosity

BettieZumbrunnen

Momentum = (mass) x (velocity) Since we have no information about the object's direction, the best we can do is use the magnitude of its momentum and find it's speed.                Magnitude of Momentum = (mass) x (speed) For this object,             (75 kg-m/s) = (3 kg) x (speed) Divide each side by (3kg):                          (75 kg-m/s) / (3 kg)  =  Speed                                              Speed  =  25 m/s .                                                   (about  56 mph)

aprilwagner90

$p=75 \ kg \cdot m/s \\ m=3 \ kg \\ \boxed{v-?} \\ \bold{Solving:} \\ \boxed{p=m \cdot v} \\ \Rightarrow v= \frac{p}{m} \\ v= \frac{75 \ kg \cdot m/s}{3 \ kg} \\ \Rightarrow \boxed{v=25 \ m/s}$