Question

what is the kinetic energy of 150kg object moving with the speed of 15m/s?​

Answer 1

$\huge{\tt{\pink{\underline{ GivEn}}}}$

• Mass of object = 150kg
• Speed of object = 15m/s

$\huge{\tt{\orange{\underline{ To \: finD}}}}$

• Kinetic energy of object

$\huge{\tt{\green{\underline{ Solution}}}}$

Here, we we know that mass and speed of object is 150kg and 15m/s respectively.

Now, we have to find kinetic energy of object.

We know that :-

Kinetic energy of object = $\large{\tt{ \frac{1}{2}mv²}}$

Where :

• m = mass of object → 150kg ••••( given)
• v = velocity of object → 15m/s ••••(given)

Therefore, we found the formula to find kinetic energy of object.

Substituting values in formula:-

Kinetic energy = $\large{\tt{\frac{1}{2} × 150 × 15²}}$

=> $\large{\tt{\frac{ 1×150×15×15}{2} }}$

=> $\large{\tt{75×15×15}}$

=> $\large{\tt{ 16875J}}$

$\large{\boxed{\tt{\red{ ∴ Kinetic~ energy ~of ~object ~= 16875 J}}}}$