Answer:
Explanation:
Graph shows the distance traveled by a biker as a function of time.
Velocity of the biker changes in the different intervals.
1). In the interval 0 < t < 2, biker is moving with a constant velocity.
Velocity =
=
= 2 km per hour
2). In the interval 2 < t < 5,
Velocity =
= 0
Therefore, biker stopped between 2 to 5 hours.
3). In the interval 5 < t < 6,
Velocity =
=
= 1 km per hour
4). In the interval 6 < t < 7,
Velocity =
= 3 km per hour