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Okay so my roommate is taking physics 101 this semester. Yay for him. Now he just called me over to help him with his homework, so arrogantly i thought 'sure i can help you!' ..oops
"Suppose that the displacement of an object is related to time according to the expression x = Bt2. What are the dimensions of B? "
...right, maybe question 2?
"A displacement is related to time as x = Asin(2ft), where A and f are constants. Find the dimensions of A. [Hint: A trigonometric function appearing in an equation must be dimensionless.]"
uhh, alright, i'll be the first to admit i'm an idiot, but what is going on. Displacement i'm figuring is maybe a fancy word for distance? But what are the dimensions? What is going on, because i'm so lost i'm curious.
Normally the physics problems i see are like an open bag of sand sliding down an incline, what the heck is this?
(and i want to look smart by knowing the answer)
"Suppose that the displacement of an object is related to time according to the expression x = Bt2. What are the dimensions of B? "
...right, maybe question 2?
"A displacement is related to time as x = Asin(2ft), where A and f are constants. Find the dimensions of A. [Hint: A trigonometric function appearing in an equation must be dimensionless.]"
uhh, alright, i'll be the first to admit i'm an idiot, but what is going on. Displacement i'm figuring is maybe a fancy word for distance? But what are the dimensions? What is going on, because i'm so lost i'm curious.
Normally the physics problems i see are like an open bag of sand sliding down an incline, what the heck is this?
(and i want to look smart by knowing the answer)