Cliff divers at acapulco jump into the sea from a cliff 37.1 m high. at the level of the sea, a rock sticks out a horizontal distance of 13.39 m. the acceleration of gravity is 9.8 m/s 2 . with what minimum horizontal velocity must the cliff divers leave the top of the cliff if they are to miss the rock? answer in units of m/s.

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.