Rigid-body mechanics is divided into two areas: deals with the equilibrium of bodies, that is, those that are either at rest or move with a constant velocity; whereas is concerned with the accelerated motion of bodies.

Statics and dynamics

Explanation:

Rigid-body mechanics is divided into two areas: statics deals with the equilibrium of bodies, that is, those that are either at rest or move with a constant velocity; whereas dynamic is concerned with the accelerated motion of bodies.

scorpions are,

c.arachnids

  scorpions are animals in the order scorpiones, under the class arachnida, which makes them a distant cousin of spiders

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at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.