Adeliveryman moves 10 cartons from the sidewalk, along a 10-meter ramp to a loading dock, which is 1.5 meters above the sidewalk. if each carton has a mass of 25 kg, what is the total work done by the deliveryman on the cartons to move them to the loading dock?

3750 J

Step-by-step explanation:

We are given that

Total number of cartons=10

Height of loading dock from the side walk=1.5 m

Length of ramp=10 m

Mass of each carton=25 kg

We have to find the work done by the delivery man on the cartons to move them to the loading dock.

Work done=

Where M=Total mass of object

h=Height of object above the ground

g=Acceleration due to gravity=

Total mass of cartons=M=

h=1.5 m

Substitute the values then, we get

Work done=J

Hence, the total work done by the deliverman on the cartons to move them to the loading dock=3750J

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify