0.3x0.21x0.08kg=mass 1 sheet
mass 500 = 500xmass 1
volume pile = 0.3x0.2x0.048
density=mass/volume= 500xmass 1/0.3x0.2x0.048
v patient student
answer: a. same unit
explanation:
distance = 150m
displ = root (50 ^2 + 100^2)
root(2500+10000)
root 125000