Question

an object of mass 20 kg is moving with a uniform velocity of 5m/s .what is the kinetic energy possessed by the object

Answer 1

Given that, mass of 20 kg is moving with a uniform velocity of 5 m/s


We know that the kinetic energy (Ek) possessed by a body of mass (m), moving with a uniform velocity (v) is :-

Ek = (1/2)mv²

Here,

=> Mass = 20 kg
=> Velocity = 5m/s

=> Ek =
$\frac{1}{2} \times 20 \times {5}^{2} \\ \\ = > 10 \times 25 \\ \\ = > 250$
So the kinetic energy possessed by the body is 250 Joules.


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Answer 2

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ANSWER :

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The mass of the object, m = 20 kg

The speed of the object, v = 5m/s

The Kinetic Energy, K.E = ?

We know that ,

$kinetic \: energy = \frac{1}{2} mv ^{2}$

From this ,,,

Kinetic Energy ,K.E = 1/2 × 20 × (5)^2

K.E = 10 × 25

K.E = 250 J

The Kinetic Energy is 250 J .

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