Recent content by rejz55

the thing is it would be exposed to different obstacles and the last boat standing will win..we cannot choose the people who will ride the boat

i just want to ask..is it possible to make a paper boat where in 3 people can sit there and withstand the effect of water, wind etc? because we have to do it and the only material would be paper (of course maybe glue tape etc)..thanks!

Homework Statement suspended a heavy weight from a light string and attach a similar string below it. if you pull on the lower string with a steadily increasing force, the upper string will break; if you pull the lower string with a jerk, the lower string will break. please explain to me...

Thanks! Got it!

if i will use that equation there will be 2 unknown variables. the initial velocity of y and the height.. how can i use the given 75% its max height and the 4/5 speed of the projectile

Homework Statement At 75% its maximum height, the speed of a projectile is four-fifths its initial speed. What is the angle of the initial velocity vector with respect to the vertical? I really have no idea how to do this. Can you give me the idea on how to start or how to do it. (just...

Thanks!

I got it right now..Thanks

y not? its the new value of the radius cause the radius should be squared..thanks..

Homework Statement How am i going to compute for the 3rd force? the given are 163g 54degress S of E, 401g 12degrees E of N and the resultant 915g 180degrees or West. The Attempt at a Solution I computed it like the way a resultant is missing. I got 780.52g at 19.48degrees N of W. They...

[SOLVED] Please check Homework Statement Find the volume of a right circular cylinder with a measured length of 2.3±0.1 and radius 0.12±0.05m. Homework Equations Propagation of uncertainty Multiplication: (a±uncertaitya) (b±uncertaintyb)= ab± ab[(uncertaintya/a) + (uncertaintyb / b)...

Thanks shooting star..:smile:

Can you elaborate your explanation pls..Thanks..I have my few interpretations here..I just do no Know if they are right..Thanks..(see the attached file)

Yah..so what do you think above the x-axis mean..should the angle end above the x-axis or the turn start at the positive x-axis as it usually does..

Yes it does..the question would be find the fourth force.. Thanks a lot guys!