A body of mass 5 kg is acted on by a net force of magnitude `F` newtons. This force causes the body to move so that its velocity, `v\ text(ms)^(-1)`, along a straight line of motion is given by `v = 3 + 2x`, where `x` metres is the position of the body at time `t` seconds.
When `x = 2, F` is equal to
- 10
- 14
- 35
- 70
- 175