Answer
(a) $F = 1~N$
(b) $F = 2~N$
Work Step by Step
The mass of the object is 0.200 kg. We then find the Force F using the formula below:
(a) $F = ma$
$F = (0.200~kg)(5~m/s^2)$
$F = 1~N$
(b) $F = ma$
$F = (0.200~kg)(10~m/s^2)$
$F = 2~N$