1. Cecil wants to be able to leap tall doghouses in asingle bound while wearing her Super Dog costume. Cecil can almostjump up to the roof of her doghouse now. Cecil thinks that shemight be able to retrofit her Rapid Buster Delivery System (whichshe uses to deposit Buster over the fence when he annoys her) tohelp her. The basics of her prototype is shown below. A block ofmass, m = 5.00 kg is released from a height 5.00 m above the bottomof the track. It carries a very strong magnet and is arranged so asto repel an identical magnet embedded in block m = 10.0 kginitially at rest. The two blocks never touch and friction can beignored.
Calculate the maximum height to which m is returnedafter the collision. b) What is the flaw in Cecil’sdesign?
What is the flaw in Cecil’s design
2. Next, Cecil and Gretta explore whether inelasticcollisions could achieve a puppy escape velocity. They have a 12.0g was of used chewing gum that they found on a walk and they shootit at Mark’s 100g candy bar sitting on the table. After impact, thecandy bar (covered with gums) slides 7.5m (really long table)before coming to rest. The coefficient of friction between thecandy bar and the table is 0.650. What was the speed of the gumimmediately before impact?
3. Cecil and Gretta agree that preliminary testing iscomplete and they are ready for launch! They want to strap Busterto a Saturn V launch vehicle. It consumes fuel and oxidizer at arate of 1.5 * 10^4 kg/s with exhaust speed of 2.6*10m’s. (a) Whatthrust would be produced? b) What acceleration is achieved if theinitial total mass of Buster plus thruster is 3.00*10^6kg?
