Acart attached to a spring with constant 3.24 n/m vibrates with position given by x = (5.00 cm) cos(3.60t rad/s).
(a) during the first cycle, for 0 < t < 1.75 s, at what when is the system’s potential energy changing most rapidly into kinetic energy?
(b) what is the maximum rate of energy transformation?

If forces acting on an object are unbalanced, which factors may result fron an unbalanced force? check all that apply

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is