What forces act on these bodies? Neglect air resistance. a) A projectile fired from a cannon on a horizontal surface.

What forces act on these bodies? Neglect air resistance.
a) A projectile fired from a cannon on a horizontal surface.
b) An artificial satellite orbiting the Earth,
c) A bar sliding along an inclined plane.

a) Gravity; b) gravity; c) gravity, elasticity, friction.

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