Question

A second marble is thrown in the same ramp. Its height is modelled by the following equation:


h=-140(t-0.65)^2+70



Compare the motion of the two marbles. Things to consider:



initial height, maximum height, time it reaches the maximum height, intercepts

Answer 1

Answer:

More precisely, we define the change in gravitational potential energy ΔPEg to be ΔPEg = mgh, where, for simplicity, we denote the change in height by h rather than the usual Δh. Note that h is positive when the final height is greater than the initial height, and vice versa. For example, if a 0.500-kg mass hung from a cuckoo clock is raised 1.00 m, then its change in gravitational potential energy is