The flat rock or log must weigh five times more than the target animal.

Although team cohesiveness may not be completely measurable, everyone knows a rock weighs much more than sand.

For example, rock can weigh between 150-175 lb/c.

If so, then the rock under water weighs less by the weight of an equal volume of water.

The big rock also weighs more than the little rock in the earth's gravitational field.

The rock in the engagement ring must have weighed a pound.

For example, a small rock weighs less than a large rock.

This is why a rock in water weighs less than a rock in air.

A surge of adrenaline shot through him and suddenly the rock weighed nothing.

The damned rock only weighs a few pounds here.