Question

calculate the kinetic energy of an object of mass 4kg moving with a speed of 3m/s. e=? e = ½ mv² m= e= v=

Explanation:

Step1: Identify given values

$m = 4\ kg$, $v=3\ m/s$

Step2: Use kinetic - energy formula

$E=\frac{1}{2}mv^{2}=\frac{1}{2}\times4\times3^{2}$

Step3: Calculate the result

$E = \frac{1}{2}\times4\times9= 18\ J$

Answer:

$18\ J$