Recent content by malemdk

The particle is not in equilibrium, since all the components add in the same +ve and -ve direction , if the system to be in equilibrium one of the component has to have a negative direction that's what you get.

The bird acceleration in vertical or horizontal or whatever directions results NO net downforce is equal to zero ,since those forces are internal forces and mutually cancel out ,the truck will be the same wether birds are flying or sitting .

Water power is pressure x rate of flow , This is the power which is goes through a water turbine and turbine power is out put from that particular turbine ,and the turbine power will be always less than water power because of losses

Coefficient of friction for tyre on steel is 0.3

Reduction in mass or increase in mass will affect the angular acceleration or retardation.

Please do check the current and voltage with a multimeter for both the motors, in no load conditions and see these values are within the range of name plate , if its not, then the problem with motor or gear box or clutch. Usually the motor and gear box are fitted with life time lubricated...

Torque is function of crank angle and numerous other parameters

Yes it looks somewhat like, but not exactly what you have shown is small machine, the machine which I designed was for industrial use, the rated capacity of each cylinder is 40 t, there were 2 cylinders

It's hydraulic power cylinder version, do you design any scissor jack or is it course project?

Yes it's for simple configuration, but the calculations become somewhat complicated for other configurations

I myself worked out the problem -(Mechanical Engineer) since no where I could find the solution to this scissor lift problem- I think Its hard to post here its a lengthy calculation ,

Weight lifter and stand are entirely different aspect , weight lifter actively create a force to lift a weight or to keep a weight whereas a stand only reacts to a weight weight lifter burning the energy to keep the weight in its place - energy comes from inside of his body- the stand does not...

The friction between your socks and the floor prevents you from flying back and should be greater than the friction between the fridge and the floor if otherwise you will be slipping

and makes the tube at angle of 45degree to the ground you could fire a ball to max distance

Thats exactly what I mean, Position the slider inside a tube