A grocery sack can withstand a maximum of 230 N before it rips. What is the bags force when holding 15 kg of groceries and that is lifted from the counter at an acceleration of 7.0 m/s^2 hold?

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