Can someone please help? Physics related

[nightmaressana]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_S08_qp_32.pdf

Can someone please show me how to do question 1 part g? I am trying to do it but ive never done such a question before. Please help!

 

[CaptainDanger]

General form of a straight line.

y = mx + c

Compare the given equation with it.

T^2 = (4(π^2)ml/g(m+M) + z

So gradient (m) equals (4(π^2)m/g(m+M)

Put the gradient in this equation that you have calculated in part f. Find M.

y-intercept equals z.
y-intercept from the previous part.


For units
M is mass so g or kg unit.

y-intercept has the same unit as y-axis
So unit of z = s^2

 

[nightmaressana]

http://papers.xtremepapers.com/CIE/...nd AS Level/Physics (9702)/9702_s12_qp_33.pdf
but for question 1e, shouldnt p/m be the gradient? why just P?

Value of P = candidate’s gradient. Value of Q = candidate’s intercept.

 

[CaptainDanger]

1/m is plotted on x axis. So its just P.

Read part (d) (i)
You get hint from there.