The greatest increase in the acceleration of a satellite is caused due to a decrease in the radius and an increase in the tangential speed. The correct option is third.
What is acceleration?
Acceleration is given by the ratio of resultant or total force acting on any object and the its mass.
It can also be defined as the rate change of velocity with time.
acceleration a = (Δv) / (Δt)
There are two types of acceleration: centripetal and tangential acceleration.
Tangential acceleration in a circular motion is given by
at = mv²/r
Acceleration is inversely proportional to the radius of the orbit of satellite.
Tangential acceleration and centripetal acceleration collectively gives the resultant acceleration. Both are perpendicular to each other.
The greatest increase in the acceleration of a satellite is caused due to a decrease in the radius and an increase in the tangential speed.
Thus, the correct option is third.
Learn more about acceleration.
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