Henry can lift a 200 n load 20 m up a ladder in 40 s. ricardo can lift twice the load up one-half the distance in the same amount of time. which comparison between ricardo and henry is correct? a. ricardo exerted a greater force, did the same amount of work, and had the same power output as henry. b. ricardo exerted a greater force, did the same amount of work, and had a greater power output than henry. c. ricardo exerted a greater force, did less work, and had a lower power output than henry. d. ricardo exerted a smaller force, did more work, and had the same power output as henry.

your answer will be letter (A Ricardo exerted a great force, did the same amount of work, and had the same power output as Henry.

A. Ricardo exerted a greater force, did the same amount of work, and had the same power output as Henry.    

Explanation:

Word done is the product of force and displacement. Power is the rate change of energy consumed.

Henry applied a force of 200 N lift the load up a distance of 20 m in 40 s.

Work done by Henry,

Power output,

Ricardo applied a force of 400 N lift the load up a distance of 10 m in 40 s.

Work done by Henry,

Power output,

Thus, the word done and power output by both Henry and Ricardo are equal but the force exerted by Ricardo is greater.

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

i think it would be 5