Your groceries are in a bag with paper handles. The handles will tear off if a force greater than 50.8 N is applied to them. What is the greatest mass of groceries that can be lifted safely with this bag, given that the bag is raised with constant speed.

Answer 1

No promises this is right, but:

Normal force is acting up on the bag, and that is given to be a maximum of 50.8 N. To balance this force is the mg force which points strait down towards the ground. By equating mg = 50.8 and g = 9.81 then you can solve for m.

Answer 2

67