It is almost time for the summer olympics. the olympic hammer throw is a throwing event where the object is to throw a heavy metal ball attached to a wire and handle. the name hammer throw comes from an older contest where men threw a sledge hammer. the hammer have different weights, ranging from 16 pounds down to 8 pounds. imagine there are four hammers to throw: 16, 12, 10, and 8 pounds. if you throw each hammer with the same amount of force, which hammer will move the shortest distance?
a) 8 pounds
b) 10 pounds
c) 12 pounds
d) 16 pounds

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.