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Post the links for the paper and the mark scheme. I'll have a look.
9702_s06_qp_2.pdf
9702_s06_ms_2.pdf
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Post the links for the paper and the mark scheme. I'll have a look.
Q1) (c) (i) Using v^2 = u^2 + 2as, v = 9.40 ms^-1.
here you goPost the links for the paper and the mark scheme. I'll have a look.
here you go
ok thnx ^^Its explained... Check the above posts...
but isn't there a whole decimal difference?Q1) (c) (i) Using v^2 = u^2 + 2as, v = 9.40 ms^-1.
(ii) We have to show whether or not it is justified to say that air resistance is negligible.
While the ball is travelling at a speed of 9.40 ms^-1, resistive force on it = F = crv = (3.2 x 10^-4) x (1.2 x 10^-2) x 9.40 = 3.608 x 10^-5 N.
Weight of the ball = mg = 0.015 x 9.81 = 0.14715 N.
=> Resultant force = 0.14715 - 3.608 x 10^-5 = 0.1471139 N
F = ma
=> a = 0.1471139/0.015 = 9.81 ms^-2 (approx.)
Since the acceleration of the ball is approximately equal to the acceleration of free fall g, 9.81 ms^-2, it is justified to say that air resistance is negligible.
Otherwise too, you can notice that the resistive force of 3.6 x 10^-5 N is very small as compared to the weight of the ball, so air resistance can be ignored.
guys please help me urgntly requiring i coudnt do no.6 from this file i have send the file so please help and regarding number-7 iam getting the correct answer but the naswer in the book is written 120N degree At angle of 25degree to the 50N but why cant it be also possible 25degree to 80N and its written in anticlockwise direction iam getting clockwise so please explain why its anticlockwise and no.3 of exam style question iam getting wrong answer tried several time but not getting the coorect answer so please help in that as well pleaseeeeeeeeee help as soon as possible in these 3 questions answers for 6 and 3= for 6-upstream at 78 degree to the bank
for 3-b(1) 92N (11)77NN C(1)59N (11)59N
for 3Ci havent put the image this was the question using youre answers in (b) to determine the horinzontal component of the tension in (1)RA (11)RB Coment on youre answers
if any one know one of these or 2 answrs just reply no need for 1 person to solve all the answers means what ever you know help please youre responce will be highly appreciatedView attachment 3274
for number-7 about the direction iam getting clockwise but the actual answer is anticlockwise so pleaseexplain that and also number-3 pkease as soon as possible and thanks captaindanger
Glad I could help... The 80N force is making it anticlockwise I guess...thankss captain so what direction are you getting anticlockwise or what?
can you make a diagram and explain pleaseeeeeee
My pleasure...ok thankss for all the question you solved and helped
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