1
2
3
4
5
2

At what value of y is 

y = y

Answer:  y = -40

2

A particle moves along a straight line such that its displacement s after time t is given by s = 2t3

Find its velocity at t = 2 s.

Answer:  24 m/s

2

A boy walks 5 m due north then 12 m due west. Find its displacement from his start position.

Answer:  13 m

2

Which colour has the second to the shortest wavelength in the spectrum of white light?

Answer:  indigo

2

Kaakaki is an example of ______ instrument

Answer:  Wind