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bixtya [17]
2 years ago
13

Two cars are moving with velocities 70km/hr and 50km/hr in east and west direction respectively.

Physics
1 answer:
viva [34]2 years ago
5 0

Answer:

70 + 50 = 120 km/hr

Explanation:

The driver of either car would see the other car approaching or departing at 120 kph

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Using the law of conservation of momentum
m1u1+m2u2=m1v1+m2v2
Where m1 is mass of first object
m2 is mass of second object
u1 and u2 are initial velocities of object 1 and 2 respectively
v1 and v2 are final velocities of object 1 and 2 respectively
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Substituting values
600*4+0=v(600+400)
2400=v*1000
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Now momentum of system
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p=(600+400)*2.4
p=1000*2.4
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