A particle moves along a horizontal line starting from rest at point 0. The graph of displacement versus time is shown for the particle. ↑displacement (m) (7,95) (0,50) (2,20) (10,0) time (s) State...

Extracted text: A particle moves along a horizontal line starting from rest at point 0. The graph of displacement versus time is shown for the particle. ↑displacement (m) (7,95) (0,50) (2,20) (10,0) time (s) State the time(s) at which the particle has a velocity of zero. a b State the time intervals during which the particle has a negative velocity.“ с State the time intervals during which the particle has a positive velocity.