M1 HELP NEEDED, RIGHT NOW!!

[mousa]

Hello everyone, i need help with those couple of questions.
Please explain your steps in detail and clearly.

Q 7) ii .....Nov 2008

Q6) Nov 2004

Thanks.

[nid404]

Nov 08
Q7

integrate acc, ull get velocity, integrate velocity, ull get distance...

double integration of (10 ? 0.3t)

v=dat=10t-0.3t²/2 +5
s=dvt= 10t²/2 - 0.3 t³/2X3 +5t
       = 5t² - 0.3t³/6 + 5t
substitute t=2.5 (since 0.5sec taken to travel uptil A)
s=42.97
total s= 42.97+1.25
        =44.2m

[nid404]

nov 2004

one of my fav qs

i) F<= uR
    <=0.75 8000
F<= 6000

ii) F max on top box= uR=.4 x4000=1600=400a a<=4

P-6000=3200
pmax=9200

[mousa]

nov 2004

one of my fav qs

i) F<= uR
    <=0.75 8000
F<= 6000

ii) F max on top box= uR=.4 x4000=1600=400a a<=4

P-6000=3200
pmax=9200

i am confused about the 2nd part, can you explain more?

[nid404]

Fmax on top box<=1600
F=ma
hence a<=4

P-6000=ma
Pmax-6000=800X4
P=3200+6000
=9200

If there has to be no slipping in the system, both should move together....and that will happen only when they both have the same accn

[mousa]

Fmax on top box<=1600
F=ma
hence a<=4

P-6000=ma
Pmax-6000=800X4
P=3200+6000
=9200

If there has to be no slipping in the system, both should move together....and that will happen only when they both have the same accn

Thank you niddy.

[nid404]

no prob

[halosh92]

could someone answer this plzzz rili urgent :S"
 a stone is dropped from the top of a tower. one second later another stone is throw vertically downwards
from the same point witha velocity of 14m/s .
if theyb hit the ground together find the height of the tower.

thx a ;Dloot

[nid404]

assuming the stone is of the same mass

s= ut+1/2 gt²
s=14(t+1)+ 1/2 g(t+1)²
equate the two

ut+1/2 gt²=14(t+1)+ 1/2 g(t+1)²    u=0
So
1/2 gt²=14(t+1)+ 1/2 g(t+1)²
find the value of t
substitute to get s

[halosh92]

assuming the stone is of the same mass

s= ut+1/2 gt²
s=14(t+1)+ 1/2 g(t+1)²
equate the two

ut+1/2 gt²=14(t+1)+ 1/2 g(t+1)²    u=0
So
1/2 gt²=14(t+1)+ 1/2 g(t+1)²
find the value of t
substitute to get s

thx a bunch man! life saver u r!

[nid404]

Ur welcome

[halosh92]

hello
could someone help me with this question please!!!!!!!!!
m1 edexcel AS
jan 2009
Q3,b,c

[astarmathsandphysics]

2 hours

[nid404]

hello
could someone help me with this question please!!!!!!!!!
m1 edexcel AS
jan 2009
Q3,b,c

put the paper up plz

[halosh92]

there u go