The object speeds up for 10 seconds, then remains at a constant speed. At 15 seconds it starts to slow down until 40 seconds. Then it speeds up for the final 20 seconds.

The object travels at a constant speed for the first 10 seconds. Then the object does not move. At 15 seconds it travels at a constant speed in the opposite direction. At 40 seconds the object turns around again and travels at a constant speed.

The object travels at a constant speed, then does not move, then slows down until 40s. Then the object speeds up for the final 20 seconds.

The object speeds up for the first 10 seconds. Then the object remains at a constant speed. Then the object travels in the positive direction with a positive speed until 30 seconds. At 30 seconds it travels in the negative direction with a negative speed for the remaining time.

The velocity is the y-intercept of the graph

The velocity cannot be determined from a graph of displacement vs time

The velocity is the area under the curve for any time interval

The velocity is the slope of the line at any given time

The velocity is the total change in displacement over the total time

The object travels in the negative direction for 10 seconds and then does not move.

The object travels with a negative velocity for 10 seconds and then travels at a constant velocity.

The object travels in the positive direction for 5 seconds. Then the object travels in the negative direction at the same speed for the next 5 seconds. Then the object stops moving.

The object is slowing down for the first 5 seconds. Then the object is speeding up for the next 5 seconds. Then the object travels at a constant velocity.

The object is slowing down for 10 seconds. Then the object travels at a constant speed.

The acceleration is the slope at any particular point in time

The acceleration is the y-intercept of the velocity vs time graph

The acceleration cannot be determined from the graph

The acceleration is the total change in velocity over the total time

The acceleration is the area under the curve for any given time interval

The displacement can only be found when the velocity crosses the x-axis

The displacement is the total area under the curve of the graph

The displacement is the area under the curve for the given time interval

The displacement is the average slope during the given time interval

The displacement cannot be determined from the graph