3 years ago

If a car accelerates at a constant rate of 3m/s^2, what is the velocity of the car after 4 seconds

Physics

2 answers:

vaieri [72.5K]3 years ago

6 0

It'll be 12 m/s greater than it was when the acceleration began.

Ne4ueva [31]3 years ago

3 0

V=d/t

V=3/4

V=0.75

Hope this helps and is correct :)

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10,500 J of GPE, weight 539 N, how tall is the hill you are sitting on?

maks197457 [2]

Answer:

19.48 m

Explanation:

Gravitational potential energy = mgh

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Mass x Acceleration = 539 N

Mass x 9.81 = 539

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54.94 x 9.81 x h = 10500

h = 19.48 m

Height of sitting = 19.48 m

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il63 [147K]

1st B is correct option

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2 years ago

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A book starts on a shelf 1 m off of the ground. You then move the book to a higher shelf that is 3 m off of the ground. If the s

JulsSmile [24]

Answer:

Using g = 9.8: 1.02 kg, Using g = 10: 1 kg

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I'm now assuming you may be using a g constant of 10, thus the close integer result, in which case the mass would be exactly 1 kilogram.

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3 years ago