Recent content by LabGuy330

I agree with everything Runei as stated above. Here is some insight from a controls engineer who graduated as an ME. Yes, systems are controlled by the use of electrical signals and digital processing. However, as a mechanical engineer, the systems you will be controlling are mechanical...

you cannot have negative mobility. Mobility is defined as "the number of independent parameters required to specify the position of all links of the mechanism." -Cleghorn 2005 These parameters are typically angles of links and distances of the base joints. If you are getting negative...

I have to clarify something before giving any advisement. Are you sure the differential equation is what you have provided or is it: τ.dy/dt + y(t) = x(t) The reason I ask is the above equation represents a first order spring-damper system where τ = (dampening coefficient/spring...

Vibration studies are accomplished by modeling systems as "spring-mass-dampers." However it is vital to provide a diagram of your setup to see exactly what your talking about.

what specifically do you want to practice in the field of mechatronics?

Before I give you some technical advice I have to ask: Do you have any knowledge in programming? If so, how much do you know?

Let me ask, are you using temperature/pressure tables for air? If so then with the known temp/pressure at the inlet (T1/P1) and the known temp/pressure at the outlet (T2/P2) then you can refer to the tables to find the inlet and outlet enthalpies, h1 and h2 respectively. Thus Q =...

thank you sandy.bridge vi does not equal 0 the statement says constant velocity of 4 m/s thus vi = vf = 4 m/s

You are almost correct except one thing, you forgot the angle of the cable relative to the beam. redo your equation by summing the forces in the Y direction (1800N is not in the Y direction)

Remember Galileo's experiment (assuming no air or other resistance). Two objects dropped from the same distance will fall for the same amount of time regardless of its mass. So how long does it take penny A to hit the ground? After you figure that out, how long is penny B falling before...

the first place to start is how long it takes for the ball to hit the ground. this should be very straight forward. then use that amount of time to see how far the ball travels in the x direction in this amount of time. hint: you are given the velocity in the x direction. Hope this helps!

a little confused. is the acceleration constant? if so then how does it have a max height if it is constantly accelerating? or is it an initial acceleration?

The reply above is spot on. reconsider your acceleration and add the pulling force from the boy.

I agree with sandy.bridge if it makes it easier you can draw one coordinate x-y axis and have the ball displaced as mentioned from there and solve for displacement in horizontal (i) and vertical (j) direction. then you can draw another coordinate x'-y' axis with the origin at the ball and...

what if i told you that your equation for Δd is incorrect. Δd = (vf +vi)/2 * Δt see if that doesn't give you 12.1644 kJ