Question

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Question 1. Subject - physics
Numerical
☆A bullet of mass 40 g has its kinetic energy equal to 200 J . Find the speed of the bullet.

Answer 1

Answer:

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Answer 2

Answer:

☆Question ☆

A bullet of mass 40 g has its kinetic energy equal to

200 J. Find the speed of the bullet.

☆Understanding the meaning first ☆

There is a bullet whose mass is 40 g.

And, that bullet has a kinetic energy of 200 Joule

So, we have to find the Speed of the bullet

☆Given :-☆

• Kinetic Energy, K.E. → 200 Joule
• Mass , M → 40 g → 0.04 Kg

☆Relation☆

$\frak{ \underline{ \boxed{ \sf{ \pink \rightarrow \: \: \green{K.E. = \dfrac{1}{2} mv²}}}}}$

☆Solution ☆

$\frak{ \underline{ \boxed{ \sf{ \blue \rightarrow \: Speed ,V \: = \bf \sqrt{ \frac{2 \: K.E.}{m}} } }}} \frak{ \underline{ \boxed{ \sf{ \pink \rightarrow \: \sqrt{ \frac{2 \times 100}{0.04} } }}}}$

$\red \sf \ \: \rightarrow \sqrt{100 \times 100} \: = \ 100 \: m \: s‐¹$

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