exam 1 notecard

# exam 1 notecard - Ѳ F friction = µN a=-µg t= v/µg...

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Constants 1 hour = 3600 sec 1 day = 8.64e4 sec 1 year = 3.16e7 sec G = 6.67e-11 (N)(m 2 /kg 2 ) G = 9.8 m/s 2 R Earth = 6.37e6 m R moon = 1.74e6 m R sun = 6.95e8 m M earth = 5.97e24 kg M moon = 7.35e22 kg M sun = 1.99e30 kg Newton’s Laws 1) Inertia and mass 2) F=ma 3) Action-reaction principle Free Fall a= -g v= v 0 -gt y= y 0 +v 0 t-(1/2)gt 2 t top = v 0 /g t ground = 2v 0 /g v-a equations S stop =v 0 t r -(v 0 2 /2a) V f = v 0 +at X= x 0 + v 0 t+ (1/2)at 2 V f 2 = v 0 2 +2ax X= vt Tension T= ma m 2 g-T= m 2 a or T- m 1 g= m 1 a or T= mg+ma Friction F= f s -mg(sin )= 0 Ѳ F
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Unformatted text preview: Ѳ F friction = µN a= -µg t= v /µg Random Volume sphere = (4/3) πr3 Area sphere = 4πr 2 Polar coordinates= (hypotenuse, ) Ѳ Angular speed/ planetary crap V= rw A c = v 2 /r = rw 2 F c = ma c = mv 2 /r = mrw 2 W= /t (radians/sec) Ѳ F G = (GM 1 M 2 )/R 2 F c = M s V 2 /r 1 orbit= 2πr t= 2πr/v v 2 = GM/r Graphs of dist/vel/acc Free-body diagrams...
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