Question

what is the kinetic energy of a 7.26kg bowling ball that is rolling at a speed of 2 m/s ?

Answer 1

Answer:

.The Kinetic energy possessed by the bowling ball while rolling is 14.52J.

Given the data in the question;

• Mass of bowling ball; m = 7.26kg

• Speed of the bowling ball; v = 2m/s

Kinetic energy; KE = ?

Kinetic energy is the energy that an matter or object has due to its motion.

It is expressed as:

KE = 1/2mv²

Where m is the mass and v is the velocity or speed.

We substitute our given values into the equation

KE

* 7.26kg * (2m/s)²

KE 3.63kg * 4m²/s² 2 2

KE 14.52kg.m²/s²

KE = 14.52J

Therefore, the Kinetic energy possessed by the bowling ball while rolling is 14.52J.

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Answer 2

Answer:

The kinetic energy of a 7.26kg bowling ball that is rolling at a speed of 2 m/s is 14.52$J$.

Explanation:

Kinetic energy is the energy that is obtained by the object due to its motion. It is calculated by multiplying half of the mass of the object to the square of velocity the object travels.

Here it is given that the mass of the ball is 7.26$kg$ and the speed of the ball is 2$m/s$.

The equation to calculate kinetic energy = K.E = $\frac{1}{2}mv^{2}$

Where,  

           m = mass of the object

            v = velocity

Therefore,  

           K.E = $\frac{1}{2}$×7.26×2² = 14.52$J$

The kinetic energy of a 7.26kg bowling ball that is rolling at a speed of 2 m/s is 14.52$J$.