Arsey's M2 Edexcel revision and resources thread

For the projectile motion question, the height was quite straight forward.

We knew the speed was $10 ms^{-1}$

Found using Pythagoras on the Horizontal and Vertical components of velocity at that point.

We knew the Horizontal component was;

$14cos\alpha$

And for the vertical, where the final velocity vertical velocity here will be represented by V;

$v^2 = (14sin\alpha)^2 -2gh$

Thus;

$10^2 = (14cos\alpha)^2 + (14sin\alpha)^2 -2gh$

Using the identity;

$cos^2\alpha + sin^2\alpha = 1$

$10^2 = 14^2 -2gh$

As for finding AB, find the time using a suvat, I personally made a quadratic in t, found the two values and took the biggest, then used $S = Ut$, where U was the horizontal component of velocity, initially.

From memory:

a=(3t²-4t)i+(6t-5)j

t=3, v=11i+10j

a) find v at time t

b) not sure about this, I think it was find a speed at a time but I don't know

Is the marking scheme out??

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Yeah...I don't think it was as easy a paper as others are saying?
what do people think grade boundaries will be like?

Arsey has posted solutions, he says it was a 'very easy paper'

From his predictions he also also said it will be like June 11 (we are ****ed i will advice you to look no further than the last letter in this sentence E)

June 11 Grade Boundaries M2;

75- 100ums
71- 90ums
68- 80ums

Less than 68 is B C D etc.

Arsey has posted solutions, he says it was a 'very easy paper'

From his predictions he also also said it will be like June 11 (we are ****ed i will advice you to look no further than the last letter in this sentence E)

June 11 Grade Boundaries M2;

75- 100ums
71- 90ums
68- 80ums

Less than 68 is B C D etc.

Hey,

for the horizontal distance in the projectile motion question, did you guys get 14m or 3.88m?

Hey,

for the horizontal distance in the projectile motion question, did you guys get 14m or 3.88m?

when did people finish their m2 course? when in the year?

when did people finish their m2 course? when in the year?

when did people finish their m2 course? when in the year?