Question

if a force in newtons is given by vector F=3i^+4j^-k^produces an acceleration of 1m/s2 of a mass. find mass

Answer 1

a=1m/s
F=3i + 4j - k
F=ma m=F/a
|F|=[3^2 + 4^2 + 1^2]^(1/2)
|F| = (26)^(1/2)
m=~5.1 kg.