First draw six of anything take out one
In a mechanical system, it is a law that energy should be conserved. In this case, what is the initial energy should be equal to the total energy after the motion happened. We do as follows:
PE(at rest) = KE(during motion) + PE(after motion)
51450 J = KE(during motion) + 32781 J
KE(during motion) = 18669 J
Simplifying the expression gives 13/ 36
<h3>How to solve the expression</h3>
Given;
1/4(1-2/3)^2+1/3
Represented as;

Take the LCM of the bracket

Find the square

Find the LCM

1 + 12/36
13/ 36
Thus, simplifying the expression gives 13/ 36
Learn more about fractions here:
brainly.com/question/1622425
#SPJ1
Answer:
6 or 3
Step-by-step explanation:
The greatest common factor for 49 and 63 would be 7 since you can divide 7 into both numbers perfectly