Question

Calculate the mass (in SI units) of (a) a 160 lb human being; (b) a 1.9 lb cockatoo. Calculate the weight (in English units) of (c) a 2300 kg rhinoceros; (d) a 22 g song sparrow.

Answer 1

Step-by-step explanation:

1. Force applied on an object is given by :

F = W = mg

(a) A 160 lb human being, F = 160 lb

g = acceleration due to gravity, g = 32 ft/s²

`m=(F)/(g)`

`m=(160\ lb)/(32\ ft/s^2)`

m = 5 kg

(b) A 1.9 lb cockatoo, F = 1.9 lb

`m=(F)/(g)`

`m=(1.9\ lb)/(32\ ft/s^2)`

m = 0.059 kg

2. (a) A 2300 kg rhinoceros, m = 2300 kg

`W=2300\ kg* 32\ ft/s^2=73600\ lb`

(b) A 22 g song sparrow, m = 22 g = 0.022 kg

`W=0.022\ kg* 32\ ft/s^2=0.704\ lb`

Hence, this is the required solution.