Matthew rolls a bowling ball with a speed of 2 meters/second. The ball hits the pins with 1.8 joules of kinetic energy. The mass of the bowling ball is __ kilograms.

Respuesta :

Answer : The mass of the bowling ball is 0.9 kilograms.

Solution : Given,

kinetic energy = 1.8 J

Velocity of an object = 2 m/s

Formula used for kinetic energy is,

[tex]K.E=\frac{1}{2}m\times v^2[/tex]

where,

K.E = kinetic energy

m = mass of an object

v = velocity of an object

Now put all the given values in the above formula, we get the mass of the bowling ball.

[tex](1.8J)=\frac{1}{2}m\times (2m/s)^2[/tex]

[tex](1.8\text{ Kg }m^2s^{-2})=\frac{1}{2}m\times (2m/s)^2[/tex]

[tex](1J=1\text{ Kg }m^2s^{-2})[/tex]

[tex]m=0.9Kg[/tex]

Therefore, the mass of the bowling ball is 0.9 kilograms.

Answer:

The mass of the bowling ball is 0.9 kilograms

Explanation:

Kinetic energy= 1.8 J

speed of bowling ball = 2 m/s

The formula for kinetic energy is given by KE = 1/ 2 mv²

1.8 = 1/2 (m) (2)²

m = 0.9 Kg