User:Sckoodudey2k

Diane


bagelkobi 13: kelly got number 10 bagelkobi 13: i used the normal axis so the x is parallel to the ground y components: Fncostheta - muFnsintheta - mg = 0 x components: Fnsintheta + muFncostheta = m (F/(m+M)) and switch the sign of force of friction to find minimum

==Then Maureen helped clarify:==

frenchfri2389: i just used those equations frenchfri2389: solved the first for Fn frenchfri2389: then the second for F Sckoodudey 2k: so is that F the min or the max frenchfri2389: max frenchfri2389: then reverse the signs for the muFn parts frenchfri2389: and solve again to get min Sckoodudey 2k: ok Sckoodudey 2k: what was ur value for 10(a)(i) Sckoodudey 2k: the first blank frenchfri2389: 16.21 frenchfri2389: the Fmin Sckoodudey 2k: o sry Sckoodudey 2k: what was the Fmax frenchfri2389: 62.05 Sckoodudey 2k: ok so mine are int he ballpark