The force of the gravitational attraction on it due to the Earth. (b) The force of gravitational attraction on it due to the Moon. (c) The magnitude and direction of the resultant force on the space rocket.
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
A Space rocket of mass 1200 kg travelled from Earth to the Moon, whose centres of masses are 4.0 x 108 m apart. Assuming G = 6.7 x 10-11 N m2 kg-2, calculate the following when the rocket was mid-way between the centres of the Earth and Moon. (Assume Mass of the Earth as 6 x 1024 kg and Mass of the Moon to be 7.5 x 1022 kg)
(a) The force of the gravitational attraction on it due to the Earth.
(b) The force of gravitational attraction on it due to the Moon.
(c) The magnitude and direction of the resultant force on the space rocket.
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