Frog skeletal muscle contains thick filaments that are 2.0um long and thin filaments 3.0 um long. If the uncontracted sarcomere is 4.0 um long, and the contracted sarcomere is 3.0 um long, what is the length of the I bands in micrometers before contraction?
A band before = [a] I band before = [b] A band after = [c] I band after = [d]

Expecting that the skeletal muscles of frog is like human beings (as they are vertebrates). The end drawn from this supposition that will be that the A band (thick fiber) stays unaltered in any event, during compression and the I band (flimsy fiber) contracts. So from the given data following outcomes are acquired;  

A band before = [2.0um]  

I band before = [2.0um]  

A band after = [2.0um]  

I band after = [1.0um]

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if an object has a net force acting on it, it will accelerate. the object will speed up, slow down or change direction. an unbalanced force (net force) acting on an object changes its speed and/or direction of motion. an unbalanced force is an unopposed force that causes a change in motion.

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