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

explanation:

newton's third law, for every action there is an equal and opposite reaction.

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