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In Physics / High School | 2014-06-26

A man is carrying a trolley with a mass of 6 kg and a kinetic energy of 40 J. Calculate its velocity.

Asked by marianjade30

Answer (3)

The formula to find kinetic energy is -
K . E . = 2 1 ​ ∗ m ∗ v 2
Where,
m = ma ss
and
v = v e l oc i t y
So, putting the values in the formula we get -
40 = 2 1 ​ ∗ 6 ∗ v 2
3 40 ​ = v 2
3 40 ​ ​ = 3.6514 m / s

Answered by sairah | 2024-06-10

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....

Answered by Anonymous | 2024-06-10

To find the trolley's velocity from its kinetic energy, use the formula K . E . = 2 1 ​ m v 2 . By substituting the values of mass and kinetic energy, we find that the velocity is approximately 3.65 m/s. This demonstrates the relationship between kinetic energy, mass, and velocity.
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Answered by sairah | 2024-12-23