Question

Physics;accounting for tension of a pulley on frictionless surface.

Answer 1

Tension of the pulley is calculated using........

Answer 2

newtons laws of motion

Answer 3

applying newtons law to the whole system

force = mass * acceleration

6*g = 11 * a

a = 6*9.8 /11 = 5.35 m s-2

Answer 4

now i know how to find the tension in the string

considering the horizontal string
applying newtons second law;-
Tension = 10 * 5.35 = 53. 5 N

Answer 5

but you require tension in the pulley right?

Answer 6

i think its mg= 6*9.8=tension on the string
since the is no effect of 5 kg wt. as surface is frictionless

Answer 7

sorry i dont know where i got 10 from!!!!

Answer 8

if you consider the horizontal string its 5 * 5.35 not 10 * 5.35

Answer 9

hhmm.. i'm not sure I would have thought you would have to take the 5 kg into account. Its been a long time since i did these...

Answer 10

@welshfella how can you add 6+5= 11 to get 11*a
this is not the case actually...

Answer 11

but i'mm considering the whole system 5 kg and 6 kg are part of the whole system

Answer 12

6 g is the downward force (dues to 6 kg mass) but 5kg is part of the mass

Answer 13

the tension will be the same throughout the whole string so i guess thats also the force on the pulley

Answer 14

5kg would have created friction on the surface due to wt. which would hav then created a resistance to allow the whole system to move down....this would hav decreased the tension on the string but here the surface is frictionless...

Answer 15

hmm maybe but i dont think you can ignore the 5 kg...

Answer 16

maybe i'm wrong

Answer 17

I'd have to look it up