Edexcel IAL Mechanics M1 3 June 2019

same for the 6.5m and 2.02 N. What did you get as time between the two vectors? 0.2?

Reply 81

Original post by randomg123

same for the 6.5m and 2.02 N. What did you get as time between the two vectors? 0.2?

got the same, please tell me your angle was 124

Reply 82

Alec_Rider

i fked up in the gymnast question and i got the tension based on the sum of the total mass from the previous situation, 170G instead of 200somethingG

Reply 83

no it was 33.7, they asked for angle not bearing?? also what did you get as U for the projectile motion question

Reply 84

Original post by Alec_Rider

i fked up in the gymnast question and i got the tension based on the sum of the total mass from the previous situation, 170G instead of 200somethingG

that's okay, won't lose all marks you'll get maybe 3 or 2

Reply 85

Original post by randomg123

no it was 33.7, they asked for angle not bearing?? also what did you get as U for the projectile motion question

angle between j and that vector, now the angle between j and i is 90, and between i and that vectors was tan^-1(2/3) so adding then I got 124

Reply 86

Original post by randomg123

no it was 33.7, they asked for angle not bearing?? also what did you get as U for the projectile motion question

14ms^-1

Reply 87

ohhh crapppppp!! guess i lost one mark. what about U?

Reply 88

How? do you remember what you did

Reply 89

Original post by randomg123

same for the 6.5m and 2.02 N. What did you get as time between the two vectors? 0.2?

The times when the vectors were within 2km of each other were t= 1/2 and 7/10 hence they were within 2km for 12 mins.

Reply 90

Original post by randomg123

How? do you remember what you did

s=-12.5
a=-9.8
t=25/7
use s=ut+1/2at^2

Reply 91

yeah i know i got that too, 0.2 hrs which is 12 mins

Reply 92

Original post by randomg123

yeah i know i got that too, 0.2 hrs which is 12 mins

I wrote my answer as 0.2 hours

Reply 93

Original post by brainmaster

angle between j and that vector, now the angle between j and i is 90, and between i and that vectors was tan^-1(2/3) so adding then I got 124

Same.

Original post by brainmaster

14ms^-1

And same.

Reply 94

Hrithikbarua_05

guys what value did you find for the height of B above ground?( for the ball rebound question)

I got 7.5, but my friends say its 2.5.
could yall explain pls

Reply 95

Original post by brainmaster

I wrote my answer as 0.2 hours

I wrote mine down as 12 mins, hope I don't end up losing a mark for this.

Reply 96

Original post by Hrithikbarua_05

guys what value did you find for the height of B above ground?( for the ball rebound question)

I got 7.5, but my friends say its 2.5.
could yall explain pls

s=h
a=-9.8
v=0
t=5/7. use vt-1/2at^2

Reply 97

Original post by Fasih178

I wrote mine down as 12 mins, hope I don't end up losing a mark for this.

idk did the question specify?

Reply 98