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Delicious77 [7]
2 years ago
10

What is the mass of a car that weighs 12kN? Will give brainliest!!!!

Physics
1 answer:
masha68 [24]2 years ago
7 0

Answer:

The answer is 1200 Kg

Explanation:

<h3><u>Given</u>;</h3>
  • Weight of car 12000 N
<h3><u>To </u><u>Find</u>;</h3>
  • Mass of car = ?
<h3><u>Formula</u>;</h3>
  • W = m × g
  • where, W = weight
  • m = mass,
  • g = Acceleration due to gravity = 10 m/s²

Now,

W = mg

12000 = m ÷ 10

m = 12000 ÷ 10

m = 1200 kg

Thus, The mass of car is 1200 kg or 1.2k Kg.

 

<u>-TheUnknownScientist 72</u>

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Isaac drops a rubber ball drom height of 2.0m and it bounces to a height of 1.5m. a) What fraction of it's initial energy is los
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Answer:

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Ei = Ep  =  m*g*h    = 2*m*g

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E(lost) = 2*m*g* - 1,5*m*g      and the fraction of energy lost is

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ΔE = 0,5*m*g / 2*m*g

ΔE = 0,5/2

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b) The speed of the ball is

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v² = 4*2*9,8

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