Moe is carrying and supporting a large crate by exerting 1000 N. He is walking a

Question

Moe is carrying and supporting a large crate by exerting 1000 N. He is walking at constant velocity across a level, horizontal floor. If he covers a distance of 10 meters, how much work does he do on the crate? Use g = 10m/s2 if needed. Ignore friction between Moe and the crate.

----------------------------------------------------------------------

A 40 kg diver steps off a diving board and drops straight down into the water. The water provides an average net force of resistance of 1573 N to the diver’s fall. If the diver comes to rest 5.2 m below the water’s surface, what is the total distance between the diving board and the diver’s stopping point underwater? The acceleration due to gravity is 9.81 m/s 2

Explanation / Answer

here

the definition of workdone by a force F is

W = F * dr

since moe carries the crate at constant horizontal velocity the upward force n he exerts to support it satisfies the condition n*v = 0 and no work is done

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.