High School

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Two 4.9 g bullets are fired with speeds of 36.3 m/s and 81.6 m/s, respectively b) what is the kinetic energy of the second bullet?

Answer :

Final answer:

To find the kinetic energy of a bullet with a given mass and speed, use the formula KE = 0.5 * m * v^2. Calculate the kinetic energy of the second bullet with a mass of 4.9 g and a speed of 81.6 m/s.

Explanation:

Kinetic energy of a bullet is given by the formula KE = 0.5 * m * v2, where m is the mass and v is the velocity of the bullet.

For the second bullet with a speed of 81.6 m/s and a mass of 4.9 g, its kinetic energy can be calculated by substituting these values into the formula.

KE = 0.5 * 0.0049 kg * (81.6 m/s)2. Calculate the result to find the kinetic energy of the second bullet.

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