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A 1,000-kg vehicle traveling 4 m/s eastward collided with another vehicle, at which point it moved 1 m/s westward. What was the vehicle's change in momentum?
a. 1,000 kg • m/s
b. 3,000 kg • m/s
c. 4,000 kg • m/s
d. 5,000 kg • m/s

Respuesta :

Answer:

Change in momentum will be 5000 kg-m/sec

So option (d) will be the correct option

Explanation:

We have given mass of the vehicle m = 1000 kg

Let the velocity in eastward direction is positive so velocity in westward direction will be negative

So velocity in eastward direction [tex]v_2=4m/sec[/tex]

Velocity in westward direction [tex]v_1=-1m/sec[/tex]

We know that change in momentum is given by  [tex]P=m(v_2-v_1)=1000(4-(-1))=5000 kgm/sec[/tex]

So option (d) will be the correct option

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