Recent content by wallism

Okay thank you very much. So that equation is the relationship between the accelerations. What will A/a give me? And I don't really know how to get started on that either...

sorry it's here -> µ R is just the normal reaction force, gm, 9.81 x 30000 So if I use mg-T = ma in my equation I get (2mg - 2ma - µR )/30000 = A And I can substitute in all the numbers to leave me with (98100 - 10000a - 58860)/30000 = A which simplifies to 39240 - 10000a = 30000A...

I’m still making no headway. 1) So the acceleration of the larger mass. (2T-muR)/m = a 2) The F = ma equation for the smaller mass F = T - mg 4) The F = ma equation for the larger mass on terms of the acceleration of the smaller mass (what you asked for in part one!?) (2(f + mg)-muR)/30000...

Sorry, very frustrated at the moment. 1) then what is the acceleration of the larger mass? A=f/m so A = (2T-µR)/m 2) what is the F = ma equation for the smaller mass? force downwards = ma - T 3) how many forces are there on the larger mass? One resultant to the right, which is...

I’m sorry, I feel as thick as two planks, I’ve been trying for hours to do this now to no avail. I’ve done each an individual free body diagram. For the smaller block downwards I have F=(m1)(a1). And tension upwards as equal to that so t1=(m1)(a1). For the larger block there’s the...

This question this struck me as fairly simple until I repeatedly tried and failed to get the right answer so any help would be greatly appreciated. Homework Statement A block of mass 30 tonnes is to be dragged across the floor by means of the smaller body (mass 5 tonnes) acting through the...

Finally! I’ve cracked the first part. Thank you very much for your help. I’m still a little unsure as to how to do the second part though. It seems straight forward enough after doing the first bit. It’s basically doing the same thing but backwards. The bit I’m unsure about is finding the...

Hi, this problem’s been bugging me for ages. I’m sure it’s just a simple misunderstanding somewhere on my behalf but I just can’t seem to get my head round it. Homework Statement A monorail car with front wheel drive and mass of 5 tonnes is suspended from two wheels 10m apart as shown. Its...