ok i see it now. so in the incline problem, we are only concerned with the x- component as that's what we take into account for finding velocity and such. Then I'm assuming that the vertical component of acceleration, that we discount, merely brings the block down. Also, in the fuzzy dice...
thanks for the fast reply again! however, how is that for incline plane problems, the axes are frequently tilted, yet the acceleration does not have any component attached to it. for example, in a frictionless incline of angle theta, a = gsin(theta). how come do we not see acos(theta) =...
thanks for the quick reply but the acceleration is different when i use the two different methods though:
the prof's a : a = gtan(theta)
and my later pondering: a = gsin(theta)
This is a standard fuzzy dice problem, hung in a car, at angle, theta, and I have to find the acceleration of the car.
I understand the approach used by the prof where he sets the x-y plane relative to mg.
So the sum of forces in the x direction = ma = Tsin(theta)
Similarly, in the y...
start out by drawing a free body diagram for the rock.. mg will be downwards and the 100 N will upwards. So the difference ( 100N - mg) will be equal to ma. and solve for a
yeah i was thinking of using a rubber band to launch my plane to achieve accuracy and precision as well. however, i was wondering if wood, plastic or simply paper would serve as a good material for the body of the plane
Hi all,
I have to build a model plane that has to fly 20m and has to fly through a holla hoop at the end that is upright. To do this, we can use any materials such as wood, paper etc... Do you guys have ideas as to how to approach this? I have been racking my brains abt this for weeks...