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shutvik [7]
4 years ago
9

What is the mass of an object with a kinetic energy of 200,000 J and a velocity of 40 m/s?

Mathematics
2 answers:
max2010maxim [7]4 years ago
5 0

Answer:

250 kg

Step-by-step explanation:

Kinetic energy = 1/2mv^2  where K. E. is in Joules, m in kilograms and y in metres per second.

200000 = 1/2 m 40^2

200000 = 800m

m = 250 kg.

sergij07 [2.7K]4 years ago
4 0

Answer:

Step-by-step explanation:250kg

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(2/7)m - (1/7) = 3/14
2m/7 =(3/14) + (1/7)
2m/7 = (3/14) + 2(1/7)
here we are multiplying 2 with 1/7 to make the denominator same for addition.
2m/7 = (3/14) +(2/14)
2m/7 = (3 + 2)/14
2m/7 = 5/14
2m = (5 *7)/14
2m = 35/14
2m = 5/2
m = 5/4
m = 1.25
So the value of "m" is 1.25
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