A 0.5 kg pendulum bob is attached to a light string 1.0 m long as shown below. It is released from
rest and swings from horizontal point A to vertical point B. At point B it hits a 2.0 kg block, and the
string is broken, then the bob and block stick together moving on a frictionless surface to point C.
Air resistance is negligible. g = 9.8 m/s2

a) What is the total mechanical energy of the bob at point A with respect to point B?
b) What is the velocity of the bob at point B before it hits the block?
c) Draw the Free-Body diagram of the bob at point B before it hits the block.
d) What is the centripetal force FC and centripetal acceleration when the bob is at point B?
e) What is the tension T when the bob is at point B?
f) What is the final velocity of block and bob when they stick together after collision?
g) How much energy is lost during the collision?