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A man is carrying a trolley of mass 6kg and having K.E. of 40 J . Calculate its velocity with which he is running .

User Sithereal
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2 Answers

6 votes
As we know that K.E = 1/2 mv² so
by arranging it
K.E ×2÷6 = v²
now by putting values
v²=13.33 m²/s²
so
v= 3.65 m/s....
User Kayhan Asghari
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9.1k points
3 votes
The formula to find kinetic energy is -


K.E. = (1)/(2)*m* v^(2)

Where,


m = mass

and


v = velocity

So, putting the values in the formula we get -


40 = (1)/(2) *6*v^(2)


(40)/(3) = v^(2)


\sqrt (40)/(3) = 3.6514 m/s
User Kumar Kush
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8.4k points