Many people assume air resistance acting on a moving object will always make the object show down. It can, however actually be responsible for making the object speed up. Consider a $$100\ kg$$ Earth satellite in a circular orbit at an altitude of $$200\ km$$. A small force of air resistance makes the satellite drop into a circular orbit with ab altitude of $$100\ km$$.
What force makes the satellite's speed increase?

Verified by Toppr

Was this answer helpful?
Similar Questions

An Earth's satellite is moving in a circular orbit with a uniform speed v. If the gravitational force of the Earth suddenly disappears, the satellite will

View Solution

The orbital velocity of an artificial satellite in a circular orbit very close to Earth is v. The velocity of a geosynchronous satellite orbiting in a circular orbit at an altitude of 6R from Earth's surface will be

View Solution

What are (a) the speed and (b) the period of a 220 kg satellite in an approximately circular orbit 640 km above the surface of Earth Suppose the satellite loses mechanical energy at the average rate of $$ 1.4\times 10^{5} $$ J per orbital revolution. A dopting the reasonale approximation that the satellite's orbit becomes a "circle of slowly diminishing radius," determine the satellite's (c) altitude, (d) speed, and (e) period at the end of its 1500th revolution. (f) what is the magnitude of the average retarding force on the satellite Is angular momentum around Earth's center conversed for (g) the satellite and (h) the satellite - Earth's center conversed for (g) the satellite and (h) the satellite- Earth system (assuming that system is isolated)

View Solution

A satellite is in a circular orbit around the Earth at an altitude of $$2.80\times 10^6\ m$$. Find
the speed of the satellite.

View Solution

A $$1000-kg$$ satellite orbits the Earth at a constant altitude of $$100\ km$$.
How much energy must be added to the system to move the satellite into a circular orbit with altitude $$200\ km$$?

View Solution