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A 4100 kg open railroad car coasts along with a constant speed of 9.90 m/s on...

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Physics

A 4100 kg open railroad car coasts along with a constant speedof 9.90 m/s on a level track. Snow begins to fall vertically andfills the car at a rate of 5.00 kg/min . Ignoring friction with thetracks, what is the speed of the car after 80.0 min ?

Answer & Explanation Solved by verified expert
4.4 Ratings (899 Votes)
As the snow falls into the car the mass of the car is increasing This is similar to colliding with one 500kg object at rest each minute Since the snow falls into the car the total mass after the collision    See Answer
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