Page 13 of 17
Re: Machines B/C
Posted: January 16th, 2020, 8:17 pm
by JoeyC
It's slope length over vertical length: you move the object by the slope length(hypotenuse), not the horizontal leg length.
Hence the AMA would be csc(45) = ~1.41/1 = 1.41
Re: Machines B/C
Posted: January 17th, 2020, 6:21 am
by waterboy
JoeyC wrote: ↑January 16th, 2020, 8:17 pm
It's slope length over vertical length: you move the object by the slope length(hypotenuse), not the horizontal leg length.
Hence the AMA would be csc(45) = ~1.41/1 = 1.41
Oh thanks a lot. That makes a lot more sense
Re: Machines B/C
Posted: January 18th, 2020, 5:55 am
by adarsh
Will these problems involving sine and cosine be there for div B?
Re: Machines B/C
Posted: January 18th, 2020, 6:32 am
by Umaroth
adarsh wrote: ↑January 18th, 2020, 5:55 am
Will these problems involving sine and cosine be there for div B?
Assume it will, trigonometry is extremely fundamental to physics, it's hard to imagine a Machines test without it.
Re: Machines B/C
Posted: January 18th, 2020, 6:46 am
by adarsh
Ok alright.
Re: Machines B/C
Posted: January 18th, 2020, 1:01 pm
by adarsh
Are there any websites that are particularly good? I went on wikipedia, but it didn't really have THAT much information.
Re: Machines B/C
Posted: January 27th, 2020, 8:27 pm
by T&J101
Are we allowed to use digital calipers to measure fulcrum distances?
Re: Machines B/C
Posted: January 29th, 2020, 6:24 am
by altair123
Hello, a Div B coach here, For the rule that states - The device must fit inside the box no larger than 100cm X 100 cm X 50 cm, do we have to take the box as well, or will the box be provided by the event supervisor? If we have to take the box , please suggest best places to find/buy boxes.
Thanks in advance
Re: Machines B/C
Posted: January 29th, 2020, 7:24 am
by MadCow2357
altair123 wrote: ↑January 29th, 2020, 6:24 am
Hello, a Div B coach here, For the rule that states - The device must fit inside the box no larger than 100cm X 100 cm X 50 cm, do we have to take the box as well, or will the box be provided by the event supervisor? If we have to take the box , please suggest best places to find/buy boxes.
Thanks in advance
The box is just for measuring, it'll be provided by the ES.
Re: Machines B/C
Posted: February 2nd, 2020, 5:01 pm
by imaditi
adarsh wrote: ↑January 18th, 2020, 1:01 pm
Are there any websites that are particularly good? I went on wikipedia, but it didn't really have THAT much information.
I feel the best way to study is by using past tests and just watching videos to solve those. Libre texts and the mech sub wiki are good resources as well as google images for a visual representation.