How do I Determine the quantity of work done when a crane lifts a 100-N block from 2 m above the ground to 6m above the ground

Determine that quantity by following these steps:

1). Search your class notes or your textbook to find the definition of "Work".

2). Find the definition: Work = (force) x (distance)

3). Identify the quantities in the problem you're showing us:

Force = 100 N

Distance through which the force acts = (from 2m to 6m) = 4 m

4). Substitute the quantities in the definition of Work that you found:

Work = (force) x (distance)

= (100 N) x (4 m)

= 400 N-m

= 400 Joules of Work.