The spring mass system has an attached mass of 10g the spring constant is 30g/s^2. A dashpot mechanism is attached. which has a damping coefficient of 40g/s. The mass is pulled down and released. At time t=0, the mass is 3cm below the rest position and moving upward at 5cm/s

solve the differential equation. state whether the motion of the sping-mass system is harmonic, damped oscillation, critically damped or overdamped.

An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.