Question

Question #b3aa8

Answer 1

When mass `m` and acceleration is `a=18ms^-2`
force on Object `F=ma` (equation 1)

when force is doubled `F'=(2F)` and mass is doubled `m'=2m`
and let the acceleration will be `a'`

then force`F="mass" xx "acceleration"`
`F'=m'a'`
`2F=2ma'`
`F=ma'`
but `F=ma` (by equation 1)
hence
`ma=ma'`
`=> a'=a=18 ms^-2`