🩵gravitational fields🩵

what is G?

6.67×10^-11

define gravitational potential at a point

the work done to bring 1kg from infinity to the point

what is the symbol for gravitational potential?

V

work done = ?

mxV

what is thrust?

rate of change of momentum

how do you derive angular speed of orbit?

use F=ma using circular motion equations

why is equator good to launch rockets?

largest initial velocity from Earths rotation

GPE = ?

-GMm/r

orbital velocity is proportional to?

1/square root of r

what is the relationship between T and r?

T² = r³

what is newtons law of gravitation?

F = GmM/r²

define gravitational field strength

force per unit mass

is g a vector or scalar?

vector

what is represented by gravitational field lines?

direction of force acting on a mass

what is the period of a geosynchronous orbit?

one day

what shows high mass of a planet?

high density of field lines