Question

Help needed :)

Answer 1

@03225186213

Answer 2

http://screencast.com/t/cquYG2XF

Answer 3

ihave studid it three years back i have forgotten the formula for ten could u please mention it

Answer 4

torque of a couple = one of the force * perpendicular distance between forces

Answer 5

can u explain how u got it

Answer 6

tor on Q=foorce*distance
3=f*0.1(100mm=0.1)
f=3/0.1
f=30
this is force on Q
as friction neglegible
f on P =force on Q
tor p=f*distance
tor=30N*0.15m (150mm=0.15m)
tor=4.5Nm
may be i am wrong

Answer 7

tension is 60N

Answer 8

i dont know
if u give me formula then i can help you

Answer 9

we hve learnt only torque formula, and the moment formula is = force * perpendicular distance for the pivot

Answer 10

@03225186213
I think we have to use radius instead of diameter

and i got 60N by this..

Answer 11

why did u take radius?

Answer 12

im not sure

let someone correct this...

Answer 13

You use radius for sure, because torque is based off the lever arm. It's mounted at the center and you apply torque at the outer ends of the pulley.

Answer 14

Think of it like a door. The hinges are at the center of a circle that the door sweeps out when you push it.