(Solved): 7. A cannonball accelerates from rest to a muzzle speed of \( 150 \mathrm{~m} / \mathrm{s} \) in \( ...
7. A cannonball accelerates from rest to a muzzle speed of \( 150 \mathrm{~m} / \mathrm{s} \) in \( 0.04 \mathrm{~s} \). Calculate its average acceleration