Pierre lifts a 60-kg crate onto a truck bed 1 m high in 3 s. marie lifts twenty-four 2.5-kg boxes onto the same truck bed in a time of 2 min. which of the following statements concerning work and power are true?

Pierre operates at a greater power level than Marie.

Marie and Pierre do  the same amount of work

Step-by-step explanation:

Mass of crate=60kg

Height of truck bed=1 m

Time=3s

Pierre's work done=

Using formula Work done=mgh

Where m=mass of object

g=Acceleration due to gravity=9.8

Power=

Using the formula

Pierre's power=

Mass of box=2.5Kg

Total number of boxes=24

Total mass of boxes=

Time=2 min=

1 min=60 s

Marie;s work done=

Marie's power=

Pierre operates at a greater power level than Marie.

Marie and Pierre do  the same amount of work

justin bieber ml.