Calculate the kinetic energy of an 86-kg scooter moving at 18 m/s?
K.E. = (1/2)mv^2
K.E. = (1/2)86 * 18^2
K.E. = (Answer Unit) =====> J
M = 86kg
V = 18 m/s
Significant Figures ======> 6
Answer: ======> KE = 13932 J
Show work:
1/2 * 86 * 18^2
(1/2)86 * 18^2
Remove Parenthesis:
a = a
1/2 * 86 * 18^2
Multiply Fractions:
a * b/c = a * b/c
= 1 * 86 * 18^2/2
Multiply the numbers:
1 * 86 = 86
18^2 * 86/2
Divide the numbers:
86/2 = 43
18^2 * 43
18^2 = 324
43 * 324
Multiply the numbers:
43 * 324
13932
Therefore, Your answer is KE = 13932 J
Hope that helps!!!! : ) sorry for the long explanation!!!
