Recent content by tgpnlyt7095

Hi .. May i ask why does a infrared photograph of a person look different from a photograph taken from visible light ? Relevant Equations : V = ƒ x lambda I believe it has got to do with the wavelength or frequency. However, i can't explain it ..

why do all these? from the centre of the barrel to the edge, its still the radius that is concerned , which is 0.5. is there a need to use pythagoras theorem ??

where does 0.4 comes from ??

What about the trigo way ??

So, based on this diagram, what am i supposed to find ? Can u show me the trigo way of doing it ?

Can i take a look at the solution / steps involved??

Gosh... I appreciate the opportunity u guys had given me to be involved in the thinking procedures of solving this question but i have not learned trigo in my elementary mathematics ... is there an alternative ?

Okay, so the torque is 1500 x 0.3 = 450N ?

Sorry .. ;(

0.5m - 0.2m = 0.3m

I think i got it. F x D , = 1500N x ( 0.5m - 0.2m ) = 450Nm

But i thought its a circle ??

Distance of Barrel from the centre to the edge of the step = 0.5m so is it F x D = 1500N x 0.5m = 750Nm ??

It should be, F x D = 1500N x 0.7m = 1050Nm

My apologies. the height of the step is 0.2m . And 0.5 represents the radius of the circle. The force is applied at the height of 0.7m