Can you check to see if I understand these questions?
1.when a jumbo jet lands, there is a decrease in both its kinetic and potential energy. where does this engergy go?
-The engergy goes under the wings
5. a baseball and a golf ball have the same momentum. which has greater kinetic engergy?
-the baseball
12. you have a choice of catching a baseball or a bowling ball, both with the same KE. which is safe?
-catching the baseball is safe
Could it be that the energy goes into friction on the brake linings?
5. Nope. Momentum is mv have you considered the masses, so which one has the greater velocity.
12. right, but why.