An object has a momentum of 4,000 kg-m/s and a mass of 115 kg. It crashes into another object that has a mass of 100 kg. If the momentum is conserved, what is the new velocity? Round to the nearest hundredth.

Answer

19 m/s

Explanation

Finding the velocity of the initial object

Momentum=mass * velocity

P=m*v

4000=115 * v

v=4000/115 = 34.78⇒35m/s

Total momentum after the collision

Because the momentum is conserved, the total momentum afterwards = 4000kg-m/s

Total mass after collision

Total mass = mass of initial object + mass of second object

Total mass = 115+100 = 215kg

Finding new velocity after collision

v=p/m

=4000/215

=18.60

=19m/s

its 18.60

Explanation:

got 100% on pf