Question

Which body is in equilibrium?

(1) a satellite orbiting Earth in a circular orbit
(2) a ball falling freely toward the surface of
Earth
(3) a car moving with a constant speed along a
straight, level road
(4) a projectile at the highest point in its trajectory

Answer 1

A car moving with a constant speed along a straight, level road is in body equilibrium.

Answer 2

3) a car moving with a constant speed along a
straight, level road.

Hopefully this helps and good luck