1. Givenxjr+2xzz+15=3ysin[zy].nd-::-. 2. A pulley 4 meters from the ground is used to lift a mo kg bio-cit. If the rate at which the block is getting closer to the DUNE}! is 0.2 meterai'second. how fast is the block pulling awayr from the ground when it is 3 meters fen-n the ground? 3. Suppose the height of an obiect red straight up from a 1DD~meter cliff is gitren by stir) = 1m + at w 43:3, where s is measured in meters and t is measured in sesenes. Find the velocity of the object es it hits the ground below thr suit. :3 4. An open box with a rectangular base is to be made item a soo cm by 56D cm of cardboard by cutting out squares of equal size from the four corners and bending up the sides. Find the largest possible 1trolume of the box