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In a system, when potential energy decreases, then entropy also decreases. true false

The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6−0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?