Answer:
1.11 m
Explanation:
Work done = Force applied × Displacement in the direction of force
We have to apply a force on the apple which should be at least equal to its weight.
Weight of the apple = Mg = 180 × 10^-3 kg × 10ms-2 = 1.8 N
Work = 2J = 1.8N × s
s = 1.11 m