The magnitude of each force is 208 N the force on the right is applied at an angle 36° and the mass of the block is 17 kg the coefficient of friction is 0.149 the acceleration of gravity is 9.8 m/s^2 What is the magnitude of the resulting acceleration?
answer in units m/s^2

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.