a bucket is lifted out of a well by a small gas powered engine and the buckets potential energy changes from 2.0 kJ to 110 kJ in 2.2 seconds what power did the engine use on the bucket

Which of the following is an example of motion in two dimensions?

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.

Which equation is mostly likely used to determine the acceleration from a velocity vs time graph