How much work is done in holding a 15n sack of potatos while waiting in line at the grocery store for 3 minutes

The strict scientific definition of work is

                   Work = (force) x (distance) .

If you exert a force but not through any distance, then technically,
no work has been done.  You may break out in sweat, and your arm
may start to tremble and ache.  But according to Physics, no work
has been done until you lift that bale a little higher.

At maximum height, kinetic energy is converted in potential energy  formula: at max height, ke = ½ * 0.27kg * (16m/s) ² = 34.56 j  so the remaining pe = (41.70 – 34.56)= 7.14 j = 0.27 kg * 9.8m/s² * h  = (9.8/7.14 * 0.27)so max height h = 5.08 or 5 m 

The answer would be true