PHYSICS 130-1 Lecture 9: Physics 1 Lecture 9
25 Oct 2018
School
Department
Course
Professor
Aball hangingfrom the ceilingby astring is pulled back
and released
T
free
body diagram I
1mg
Aring seen from above is pulled on by 3forces The ringis
not moving How bigis the force I
t
lONios
in
01 1ON
gyro
sino
IE8Emot o
Comg t
10cos
010 cos0notmoving so 90
Fx 10 cos locos 00
Effy 10sin010
sino fO
20Sino Ibhotinotg
Fentirely vertical
Document Summary
A ball hanging from the ceilingby a string is pulled back and released freebody diagram. A ring seen from above is pulled on by 3 forces the ringis not moving how big is the force i t loniosin01 sino. 8 e mot o notmoving so 9 0 locos 0 0. Nellie newton hangs motionlessby one hand from a clothesline that is on the verge of breaking which side is most likely to break great each side as separate roped a. I w r my d weight b on efx bx. Tas in 30 ttb sin 50 my 15. 0 n. Ta tb my because ropes supporting horizontals as well as verticals. A box being pulled to the right at steady speed by rope normalforceling. A boxis sitting on the floor of an elevator the elevatoris accelerating upward. The weightof an object is the force of gravity on that object.
