Question

select the correct answer. whats the velocity of a ball falling with 100 joules of kinetic energy and a mass of 2 kilograms? use the formula, $v = sqrt{\frac{2ke}{m}}$. a. 3 m/s b. 5 m/s c. 7 m/s d. 8 m/s e. 10 m/s

Explanation:

Step1: Identify given values

$KE = 100$ J, $m=2$ kg

Step2: Substitute values into formula

$V=\sqrt{\frac{2\times100}{2}}$

Step3: Simplify the expression

$V=\sqrt{100}= 10$ m/s

Answer:

E. 10 m/s