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Whitepunk [10]
3 years ago
10

During an experiment a student records the net horizontal force exerted on an object moving in a straight line along a horizonta

l frictionless track. The graph above shows the force as a function of time. Of the following, which is the best approximation of the magnitude of the change in momentum of the object between 0 s and 4 s? (A) 20 kg•m/s (B) 30 kg•m/s (C) 40 kg•m/s () The magnitude of the change in momentum​
Physics
1 answer:
xeze [42]3 years ago
4 0

Answer:c 40kg

Explanation:

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3 years ago
Carlos gives a grocery cart a 60-N push. The cart has a mass of 40 kg. What is the cart's acceleration?
andre [41]
<h3>Answer:</h3>

1.5 m/s²

<h3>Explanation:</h3>

We are given;

Force as 60 N

Mass of the Cart as 40 kg

We are required to calculate the acceleration of the cart.

  • From the newton's second law of motion, the rate of change in momentum is directly proportional to the resultant force.
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Rearranging the formula we can calculate acceleration, a

a = F ÷ m

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Therefore, the acceleration of the cart is 1.5 m/s²

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Olin [163]

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because mass of an object changes it’s force

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