MATHS P42

[falcon123]

answer for question 3,(the parachute thing) part 2 was 1360N,and what was the time range,was it between .7 and 1.2 seconds,and value of friction in question 4 was 0.571

 

[ahmed t]

24 hours mate

 

[pioneer]

falcon yes the value was 1360 and time range was btw .7 and 1.2..bur dnt knw about friction

hey wht were the values of velocity in question no 6...and the value of tension in question 5.....i think my both of these parts got wrng.....guys wht about u ...how it went...???i hope grade goes down..:S

 

[Dani315]

Q.3. 1360N ,,, and,, 0.7<t<1.2
Q.6. T=5N ,,,, at,,, V= 4, -1......

 

[ArsalanT]

dani 315...in q.6 i did get v=4 and v=-1..but instead of -1 i wrote 1 ...will a mark be deducted?..

 

[JackTheRipper]

yes, it asked for velocities. You changed them to speeds. But just one mark

 

[JackTheRipper]

Q1 97.1 W
Q2 4.25m
Q3 1360N
Q4 30 deg, 12N
Q5 Range -> 0.7 < t < 1.2. Velocities 4, -1
Q6 T = 5N, mu = 4/7
Q7 0.132 m/s2
Please correct me if I'm wrong

 

[Zishi]

@Jack the ripper: Your answer to question 4 is wrong. The force F was like 11.1 and angle theta was like 21.1 degrees.

 

[ahmed t]

he is takin about the resultant zishi

 

[Zishi]

he is takin about the resultant zishi

The resultant for the part 2 of that question?

If yes, then that was also 11.1 N and at same angle, but now clockwise from the x-axis. So his second part is wrong, then.

 

[ahmed t]

actually the resultant was 12 and the angle was 30 degrees clockwise from the x axis

 

[ks136]

actually the resultant was 12 and the angle was 30 degrees clockwise from the x axis

no doubt

 

[aliester]

That question had 2 parts, F was 11.1N and angle was 21.1, and the resultant was 12N and its angle was 30.1 clockwise,
though i forgot to write clockwise
M i ryt? and will my marks be deducted cux i didnt write clockwise, instead i wrote below horizontal axis!
and abt tht time range, many of my frndx wrote 0.7 <= t <= 1.2, but io wrote 0.7 < t < 1.2, soo will tht lead to any deduction?

 

[ahmed t]

u are ryt but i wrote -30 and in brackets clockwisewould i loose marks

 

[aliester]

I dont think so, clockwise and magnitude of angle matters, which r both rite in ur case.
what abt my range of time my frndx wrote 0.7 <= t <= 1.2 but i wrote 0.7 < t < 1.2, wil this matter?

 

[mm231567]

hello guys, does anyone has the question paper 42 ? if anyone has please PM me, i need it. please.

thanks.

 

[mm231567]

do you think the curve will be lover this time?
Any expectations ?

 

[zaeem93]

what if i wrote 30 degrees with the x axis would it be right?
talking about q 4 i guess?