Answer:
m = 5.76 Kg
Step-by-step explanation:
Given
E = [tex]\frac{1}{2}[/tex] mv²
Multiply both sides by 2 to clear the fraction
2E = mv² ( divide both sides by v² )
[tex]\frac{2E}{v^{2} }[/tex] = m
When E = 1800 and v = 25, then
m = [tex]\frac{2(1800)}{25^{2} }[/tex] = [tex]\frac{3600}{625}[/tex] = 5.76 Kg
