Question

When x = 10 ft, the crate has a speed of 20 ft/s which is increasing at 6 ft/s2. Determine the direction of the crate’s velocity and the magnitude of the crate’s acceleration at this instant.

Answer 1

The crate’s velocity is directed toward positive $x -$ axis.

The magnitude of the crate’s acceleration at this instant $a=6 \:\rm ft/s^2.$