Final exam

Question 1

Orbital velocity

Answer 1

ac=v^2/r
ag=√GM/r^2

v=√GM/r

Question 2

centripetal acceleration (2)

Answer 2

ac=v^2/r
ac=w^2r

Question 3

Top of the loop formula

+what the a is

Answer 3

N+mg=ma

a=v^2/r

Question 4

Bottom of the loop formula

Answer 4

N-mg=ma

Question 5

side length, theta and r formula

Answer 5

s=thetra (r)

Question 6

vt formula (3)

Answer 6

vt= change in S/t

vt= wr

vt=2pir/T

Question 7

omega formula (2)

Answer 7

w=change in Theat/r

w=vt/r

Question 8

elevator going up formula

Answer 8

ma+mg=W

Question 9

elevator going down

Answer 9

mg-ma=W

Question 10

draw me force diagram of bank curve

Answer 10

Question 11

bank curve questions when all hell fall lose do:

Answer 11

Find N by N=mg/cos theta
and then sub N into your Sinthea FN (r direction)

Question 12

critical speed formula. (slowest speed to complete ferris loop)

Answer 12

N=0 so

mg+N=ma
mg=ma

mg=m(v^2/r)

v=√rg

Question 13

cross product square

Answer 13

I-j+k

Question 14

dot product (2)

Answer 14

cos theta A

axbx+ayby+azbz

Question 15

all the formulas for w,r,vt in pretorque (2)

Answer 15

vt=wxr (cross product)
w=(1/r)x(vt) (cross product)

Question 16

torque fomulas+units

Answer 16

t=rF(perpendicular)

t=rxf

Nm

Question 17

gravitational torque

Answer 17

t=mgx

Question 18

For torque always…

Answer 18

make sure the sign

cw=-
ccw=+

Question 19

width of chasm and initial speed formula

Answer 19

v0=√(dg)/sin2theta

Question 19

width of chasm and initial speed formula

Answer 19

v0=√gd/sin2theta

Question 20

power formula

Answer 20

p=w/t

p=f.v