HELPP!! You run 40 m at 5 m/s and then you walk
another 40 m at 2 m/s. Calculate your average
speed

i belive it is d. both a and c

hope this

mark me branliest, only got   it 1

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg