GRAVITATION AND FRAME OF REFERENCE

Question 1

UNIVERSAL LAW OF GRAVITATION

Answer 1

F = G[ (m M) / (R^2)]

in vector add r cube and multiply by r

Question 2

GRAVITATIONAL CONSTANT

Answer 2

6.671 x 10 ^( -11)

Question 3

INTERTIAL FRAME OF REFERENCE is ?

Answer 3

STATIONARY FRAME or constant velocity frame

Question 4

motion in inertial frame of reference

Answer 4

rectilinear

Question 5

newton law is valid in which frame of reference

Answer 5

inertial frame

Question 6

important requirement for rotational frame of reference

Answer 6

must have a PSEUDO FORCE OR CENTRIFUGAL FORCE

Question 7

difference between centifugal and centipetal force

Answer 7

centripetal force :
acts towards centre.

centrifugal force is psuedo force and acts away from centre

Question 8

which force is required for an object to stay in circular path

Answer 8

centripetal force

Question 9

which force is felt by the rotating object

Answer 9

centrifugal force

Question 10

orbital velocity

Answer 10

v = √ ( (G M) / R )
ROOT OF GM/R
V=√GM/√R

Question 11

TIME PERIOD OF ROTATION

Answer 11

T = 2π √ [ R^3 / (GM) ]
T = 2π / w
2 PI ROOT OF R CUBE / GM

Question 12

angular velocity

Answer 12

w = √ [ (GM) / R^3 ]

Question 13

TIME PERIOD OF ROTATION AND ORBITAL VELOCITY AND ANGULAR DEPEND ONLY ON BIGGER OR SMALLER PLANET INVOLVED

Answer 13

ONLY BIGGER PLANET

Question 14

1 SOLAR DAY

Answer 14

24 HRS

Question 15

1 SIDEREAL DAY

Answer 15

23 HRS 56 MIN 41 SEC