Question

A 5 kg bowling ball is rolling along the alley with velocity of meter per second what is the kinetic energy?

Answer 1

Answer:

Answer: K = 250 J.

Explanation:

KE=12mv2=12(5)(12.5)2=390.625 Joules.

Answer 2

★ Correct Question :-

∓ A 5 kg bowling ball is rolling along the alley with velocity of 10 m/s . Then, what is the kinetic energy ?

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★ Answer :-

• Kinetic Energy of ball = 250 J

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★ Explanation :-

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☆ Given :-

• Mass of ball = 5 kg
• Velocity of ball = 10 m/s²

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☆ To Find :-

• Kinetic Energy of ball = ?

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☆ Solution :-

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∓ Here, we have to calculate the Kinetic Energy of the ball !!

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✪ Formula ---- $\sf {K = \frac{1}{2} \times m \times v {}^{2} }$

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• K denotes to Kinetic Energy .
• M denotes to Mass .
• V denotes to Velocity .

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✪︎ Now, let's substitute the value ------

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⠀⠀⠀⠀$:\longmapsto \: \sf {K = \frac{1}{2} \times m \times v {}^{2} } \\ \\ :\longmapsto \: \sf{K = \frac{1}{2} \times 5 \times 10 \: ms {}^{2} } \\ \\ :\longrightarrow \: \sf{K = \frac{1}{ \cancel2} \times 5 \times \cancel{10} \: ms {}^{2} } \\ \\ :\longmapsto \: \sf{K = 1 \times 5 \times 5 \: ms {}^{2} } \\ \\ :\longmapsto \: \sf \pink{K = 250 \: J}$

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★ Hence :-

• Kinetic Energy = 250 Joule .

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