Question

a body of 60 kg is moving with a speed of 50 M per second find its kinetic energy

Answer 1

Hello!

Here is your answer!

As we know that!


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

⏩Here Mass ( m ) = 60kg ✔️

⏩Speed ( v ) = 50m/s✅

⏩Now

➡️
$\\ \\ = = > \frac{1}{2} \times 60 \times 50 \times 50 \\ \\ = = > 75000joule$

Hence the Answer is 75000Joule or 75kJ✔️✔️

Hope it helps u

Answer 2

Heya mate
As , we know K.E = 1/2 mv² .
Now we have mass i.e. 60 kg and time 50 m/s
So , first change m to km i.e. from c.g.s system to s.i system
Now we know 1000m = 1 km
and 50 m = 1/1000 into 50 = 0.05 km
So now T = 0.5 km/s and M = 60 kg
Therefore , k.e = 1/2 × 60 × 0.5 = 50.
So , the ans. is 50.
☺️☺️☺️