Recent content by menal

so your saying: 6/3/2=1 would be my answer?

oh yup, i see what i did wrong there. i switched up the values while calculating. alright, so i used your common perpendicular, and the vector joining the two points (2,0,0) and did this: [(-2,1,0)-(0,1,0)]dotproduct(3,1,-2)/1 =[(2,0,0)*(3,1,2)/1] =(2)(3)+(0)(1)+(-2)(0)/1=6/1 =6...

may i ask how you got that? using cross product?

alright, so i did what you said: I used the cosine law: (40)^2+(50)^2-2(40)(50)cos120 and gt sqrt(6100)= 78.10N then i used the sine law: (a(sinB))/b --> (40)(sin120)/78.10 and got 26.3 degrees. is that it? i know i found the resultant force, and now i found the equilibrant too?

i tried the question and got 5 as my answer, is tht correct?

yes, i have included 0 and 1 and 2/5 as my critical numbers already. I was just confused because i thought u were saying that i had to add/subtract the crticial number i got (2/5) from my intervals (0 and 1). But no, i think i get it now. the crticial numbers will be 0,1 and 2/5.

so based on that, would what i did be correct?

yes, but in my image on my sheet, AP AND BP total is 3.

and the vector joining the 2 given points would be" (2,0,0)

I got 1,1,1 so i+j+k

Homework Statement two forces of 40N and 50N act at an angle of 60 degrees. determine the resultant force and the equilbrant this is what i have so faar: resultant=F1 + F2 let F1 be along the x axis add x and y components: F1x=40N F1y= none since its along the x-axis...

Homework Statement a canoeist wishes to cross a 200m river to get to the campsite directly across from the starting point. he can paddle 2.5m/s in still water, and the current has a speed of 1.2m/s how far downstream would the canoeist land if headed directly across the river. and in what...

also, the angle that b makes with each of the coordinates would be 79 degrees?

Homework Statement i have to find the scalar and vector projection of a=i-j+k and b=2i-j-2k and i got: Vector proj = (1/3)(i-j+k) = i/3 + j/3 + k/3 scalar proj = (1/9)(2i-j-2k) = 2i/9 - j/9 - 2k/9 is this correct?

can u clarify what you mean?