Question

NO 1. A small block with mass 0.500 kg is suspended from the endp' of a rigid massless rod that is 1.60 m long and free to pivot about the far end from the block. The block has an initial velocity of 2.00 m/s to the left at the moment that the rod is perfectly vertical. At that same moment a glob of muck, mmuck 0.040 kg, travelling to the right with constant velocity strikes the block and sticks to it. Assume no change in center of mass. After the collision the combined object swings up to a height of 0.600 m with tension in the massless rod of 5.50 N Mtot m. h-0.600m 2 (a) What was the initial velocity of the muck before the collision? (b) What magnitude of average drag force would have to exist for the same muck and block with the same initial conditions to only reach a height of 0.500 m? This is simplifying drag as constant and not velocity dependent. (c) Using the same initial velocity for the pendulum as in parts (a) and the average drag force found in part (b), what initial velocity would the gum need in order for the massles:s rod to have zero tension at maximum potential energy? NOTE: There are two possible answers for this question.

Answer 1

Gi ve h cs .66 o o0uole 似 1n,hal velocity oljum block 0 LLM o so y

2 o, sou 2

Cave na block de 6 50C

6-1 to.oou ov)レ