A body of mass 5 slugs is dropped from a height of 240 ft with zero velocity. Assuming no air resistance, find an expression for the position of the body at any time t. Ox = 32t2 Ox = 20t2 Ox= 40t2 Ox= 16t2

3. A body requires a force of 100 N. to accelerate it at a rate of 0.20 m/s2. Determine the mass of the body in slugs. *

In an experiment to determine the viscosity of some oil, a ball is dropped into the oil. The position of the ball is given by the formula y(t) = A + Bt +C e−Dt, where y is given in m, and t is the time in s. At t = 0, y(0) = 0.05 m, the y component of the velocity is zero and the y component of the acceleration is ay(0)= 0.02 m/s2. As t approaches infinity, the y component of the velocity approaches vy(∞) = 0.55 m/s. Hint: You will likely want to answer the questions in a different order than presented. I am trying to figure this qeustion out, I need to find out what each of the variables in the fromula are. So far I have only found out what B is because I just toook the limit of the velocity function as t approaches zero, which gave me 0.55m/s. I am just stuck on how I would go about solving for the other variables in the question.

2. A 100 ft. long structural steel beam is used in the construction of a bridge in an area where the temperature may fluctuate 110 ° F. What would be the expected change in length of the beam? (Give your answer in inches)