The 10-kg block is at rest on the rough incline at time t = 0 and then it is subjected t...

The 10-kg block is at rest on the rough incline at time t = 0 and then it is subjected to the force of constant direction and time-varying magnitude P given in the plot. Determine the velocity of the block at times t = 1, 3, 5, and 7 s. Note that the force P is zero after t = 6 s.