How much kinetic energy does a 0.30-kg stone have if it is thrown at

Name: How much kinetic energy does a 0.30-kg stone have if it is thrown at
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The formula for kinetic energy is K.E. = 1/2 mv^2, where m is the mass and v is the velocity (speed). 
Here, the mass of the stone is 0.30 kg and the velocity is 11 m/s. 
Plugging these values into the formula, we get: 
K.E. = 1/2 x 0.30 kg x (11 m/s)^2 = 290.25 J (rounded to two decimal places). 
Therefore, the best choice is A) 290 J.

How Much Kinetic Energy Does a 0