Speed-time Graphs

1.

The speed-time graph shows the motion of a cyclist on a straight track.

(i). What is the top speed reached by the cyclist? m/s

(ii). After what time does the cyclist start to slow down? s

(iii). What is the acceleration of the cyclist during the first 5 s? m/s²

(iv). Calculate the deceleration of the cyclist. m/s²

2.

The speed- time graph shows the motion of a car on a straight section of road.

(i). Which line on the graph represents the car when it is stopped? Select ------ R S T U V W

(ii). What is the highest speed reached by the car? m/s

(iii). Which line on the graph shows the car's speed decreasing with time? Select ------ R S T U V W

(iv). Calculate the acceleration represented by line R m/s²

(v). Calculate the distance travelled by the car in 30 s. m

(vi). Calculate the average speed of the car during the first 16 s of its motion. (Credit) m/s