Question

I'm having a hard time with some free body diagrams. If you have a box on a slope/ramp and the angle of the ramp is X degrees why is it that the angle between the normal force and the gravitational force is also X degrees? Am I missing something obvious here?
bobpursley
Normal means perpendicular to the slope. The slope is at X deg to the horizontal, and the normal is 90 deg to that, so to the horizontal, the normal then is 90+x, but measuring the normal to the perpendicular, you subtract 90, so the normal is to vertical is X deg. gravity is vertical.
Yes, geometry. Sketch it carefully.
Think about what happens to the angle between straight down and the normal from the object to the ramp as the slope increases from zero. At zero you see the normal to the ramp (level road in this case) is straight down like gravity. As the slope goes up, the normal goes up, but gravity remains straight down.
You guys are great! Now I get it!

Related Questions

I am really having a hard time with this question. Which of these compounds will exhibit optical... I'm having a hard time getting started studying for my chemistry midterm. i'm kind of overwhelmed. m... Having a hard time of doing this. 500 words Identify examples of bias, fallacies, rhetorical devices... I am having a really hard time coming up with an appropriate thesis statement on animal welfare, any... I am having a hard time on the ACT with the math have bought several books trying to learn the math... I am having a really hard time figuring this question out, would somebody be able to help me? Ima... Hi my son has a very hard time with math.I'm his mom and I'm not good at math.so I'm hoping that I c... I am having a really hard time setting this problem up to solve can anyone help? Hexane has a densi... Hello, I'm having a hard time trying to figure out what comes after the topic sentence in a paragra... I'm having a hard time with coming up with equations. Here's an example: Complete the equation of th...