1.A vertical hydraulic cylinder has a 150-mm diatomic piston with hydraulic fluid inside the cylinder and an ambient pressure of 1 bar. Assuming standard gravity, find the piston mass that will create a pressure inside of 1250kPa.
2.A 20-kg iron ball is moving at 100 km/hr should be accelerated at a constant rate of 10 m/(sec)^2. What is the force required
3.Find the derivative of the equations f(x)=cos(x) using the finite differencing methods and compare the error with the actual answer as a function of x in matlab