4. consider muscle fibers that are 8 cm long and that develop a maximum of 20 n/cm2 force. consider a muscle that has a volume of 20 cm3 with the fibers aligned with the direction of the tendon (θ=0).

a.) what is the maximum force developed by this muscle? (5 points)
b.) if partial recruitment results in activation of 10% of the muscle fibers (assuming they are all of equal size), how much force could the muscle generate? (5 points)
c.) if the muscle fibers contract 15% of their length in 50 ms under no load, what is the maximum muscle velocity? (5 points)
d.) suppose the muscle fibers are oriented at 15° relative to the tendon axis, with the same volume of muscle. what is the maximum force delivered to the tendon? what is the maximum velocity? (5 points)