A piece of wood with mass 1.8 kg is cut into two pieces in the ratio 2 : 3. The length of the longer piece is 1.8 m.

Question

Complete these sentences.

(a) The length of the shorter piece of wood is 

m.

(b) The length of the original piece of wood was 

 m.

(c) The mass of the original piece of wood was 

 g.

(d) The rate of mass per unit of length of the original piece of wood was 

 kg/m. 

Answer 1

short = 1.2 m

full length = 3 m

mass 1.8 kg

mass per meter = 1.8/3 = 0.6 kg/m