Question

✦✧✧ Question ✧✧✦ ➠ ᴅᴏɴᴛ sᴘᴀᴍ⚠️ The kinetic energy of an object of mass m, moving with a velocity of 5 m/s is 25 J. What will be its kinetic energy when its speed is doubled? it is given here doubled not tripled​

Answer 1

Step-by-step explanation:

Given velocity of object ,v=5ms-¹

Kinetic energy of an object Ek = 25j

Ek = \frac{1}{2}

2

1

mv²

or

25=\frac{1}{2}

2

1

×m×(5)²

or

m=\frac{50}{25}

25

50

= 2kg

when the velocity doubles

Ek=\frac{1}{2}

2

1

mv²

\frac{1}{2}

2

1

×2×(10)²= 100

\ Answer \: is \: 100 Answeris100

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