A car with two people traveling down the road has a mass of 100 kg and a velocity of 5 m/s. The car pulls over and picks up two
people. The mass of the car is now 150 kg. What is the new momentum if the velocity stays the same?
2 answers:
Answer: 750 kg-m/s
Explanation: 100% correct passed it on pf test.
Answer:
750 kg.m/s
Explanation:
Momentum is the product of mass and velocity in kg.m/s.
In this case, initial momentum⇒p=m × v where m is mass and v is velocity
initial mass of car m₁=100 kg
Initial velocity of car v₁=5 m/s
Initial momentum= 100×5= 500 kg.m/s
New mass after picking two extra people m₂= 150 kg
Velocity stays the same v₂=v₁= 5 m/s
New momentum= m₂× v₂
p=150×5=750 kg.m/s
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