Answer: 42.15N
Explanation:
Threshold force is 230N
Force or weight = mg
Where m = mass of object and g is the acceleration due to gravity
Mass of object it holds = 15kg
g = 9.81m/s^2
a = 7m/s^2
Because a is acceleration against gravity
Minimum force applied to lift the bag = (15 × (-7)) kgms^2
= -105N
Force of gravity, i.e its weight
= (15 × 9.81)N
= 147.15N
Net force acting on the bag from above =
(147.15 + (-105)) N
= 42.15N
