(c) This velocity-time graph shows the motion of the sledge as it travels down a hill. 3.5
3
2.5
velocity
in m/s
2
1.5
1
0.5
0
0
2
4
6
10
12
14
16
8
time in s
(i) Calculate the distance travelled by the sledge.
(3)
I’m

Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.