At a given instant the bottom a of the ladder has an acceleration aa = 4 ft>s2 and velocity va = 6 ft>s, both acting to the left. determine the acceleration of the top of the ladder, b, and the ladder's angular acceleration at this same instant.

Which statement best explains why an object weight less on mercury than it does on earth

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?

Lightning is an example of what phenomenon? a release of a large amount of energy an absorption of a large amount of energy a natural electric circuit a natural electric current