Answer:
kinetic energy: [tex]9[/tex] Joules
Explanation:
[tex]Kinetic-Energy = \frac{1}{2} m v^2[/tex]
Here the mass is 80 grams - which should be changed to kilograms
→ 1 kg ⇔ 1000 grams
→ 80 grams ⇔ 0.08 kg
Now using the formula:
[tex]\frac{1}{2} mv^2[/tex]
[tex]\frac{1}{2} * 0.08 * 15^2[/tex]
[tex]9[/tex] Joules
Remember the mass should be in kg and velocity in meter per second.
