GRAVITATION AND FRAME OF REFERENCE Flashcards
UNIVERSAL LAW OF GRAVITATION
F = G[ (m M) / (R^2)]
in vector add r cube and multiply by r
GRAVITATIONAL CONSTANT
6.671 x 10 ^( -11)
INTERTIAL FRAME OF REFERENCE is ?
STATIONARY FRAME or constant velocity frame
motion in inertial frame of reference
rectilinear
newton law is valid in which frame of reference
inertial frame
important requirement for rotational frame of reference
must have a PSEUDO FORCE OR CENTRIFUGAL FORCE
difference between centifugal and centipetal force
centripetal force :
acts towards centre.
centrifugal force is psuedo force and acts away from centre
which force is required for an object to stay in circular path
centripetal force
which force is felt by the rotating object
centrifugal force
orbital velocity
v = √ ( (G M) / R )
ROOT OF GM/R
V=√GM/√R
TIME PERIOD OF ROTATION
T = 2π √ [ R^3 / (GM) ]
T = 2π / w
2 PI ROOT OF R CUBE / GM
angular velocity
w = √ [ (GM) / R^3 ]
TIME PERIOD OF ROTATION AND ORBITAL VELOCITY AND ANGULAR DEPEND ONLY ON BIGGER OR SMALLER PLANET INVOLVED
ONLY BIGGER PLANET
1 SOLAR DAY
24 HRS
1 SIDEREAL DAY
23 HRS 56 MIN 41 SEC