7. A car travels along a straight section of road. A distance vs time graph illustrating its motion is
graphed to the right.
(a) Indicate every time t for which the cart is at rest.
(b) Indicate every time interval for which the speed of the
cart is increasing.
(c) What is the velocity from: a-b, b-c. c-d, d-e,
and e- f?
