I found it easier than Jan. 2016.I left the spider question and the area under the graph(Work) and forgot to convert cm into m so I think I've lost 8 marks.Even with Mistakes I think I can afford to lose 25 marks total to get a 55.I think I'll get maybe a 57 when I strict checked my paper.The gb might be lower because many people around me found the paper to be hard/er than jan. 16 and didn't do so well.
anyone remeber the answer to that second last 4 mark question where we had to explain how to use the data to find viscosity ?
I wrote plot a graph of velocity against radius^2 then find the gradient of the graph, i conapred the eqution of v=2gr^2(density of solid-density of fluod)/9n then compare it with y=mx+c so the gradient will be equal to 2g(Ps-Pf) then substistute values and get viscosity.
what you guys explain about the effect of car's spring constant on bump road?
I don't remember exactly but I wrote that the compression would be less so the driver may jump out of his seat a little and if the bump was big,The force could be large enough to cause him injury.
i wrote, 'the spring will not deform easily to absorb impact force. so, the car will collide with bump on the road'. My sentence look ridiculous. what should be the exact answer?