Answer: 148 N

Given, the mass of the object is m = 1 0 kg and that the object is being accelerated upward. We need to find the Force exerted.

Let $\vec{F_P}$ be the force of the person lifting the box, and $\vec{F_g}$ be the gravitational pull of the earth.

The forces are in the opposite direction along the y-axis:

$\Rightarrow \vec{F_P} = F_{PY} \hat{y} = -mg \hat{y}$ (negative sign as the earth's gravitational pull is downwards).

$\Rightarrow \vec{F} = \vec{F_P} + \vec{F_g} = ma_y$

$\Rightarrow F_{PY} = ma_y+mg = m (a_y+g) = 10 Kg (5 + 9.8) m/s^2 =148\;N$