Recent content by foozeball2468

This is the orginal problem...a.)How much power is needed to push a 95 kg chest at 0.62 m/s along a horizontal floor where the coefficient of friction is 0.78.(ans. 450W)... b.) How much work is done in pushing the chest 11 m? (ans. 7.99x10^3 J) New question: Answer the previous question when...

I am not quite sure would I divide the tension of 500N by the weight of 93 kg and get 5.4m/s^2 since would the force be 500 N on the object?

Sorry I did not realize it was of great significance This is a construction worker ussing a rope and pulley system to hoist construction material to an upper floor

Yes I am postive that part is straight out of the book, then the teachers typed question is "what is the minimum time the construction worker in prob 70(which states the 500N tension rating of the rope) can hoist 93 kg of material, intially at rest, 8 m up, without exceeding the rated tension of...

okay from here Fnet=T-Fg 412.33=93kg(a) =412.33/93= 4.43 m/s^2

93*9.81=912.33 n

93 kg

gravity-9.81 m/s^2(down)and the tension 500N (up)

wouldnt that be 9.81 m/s^2 but how can I incorporate this into the problem?

Hi I am new to this site. I have been stuck on this homework question for quite some time. A construction worker uses a rope and pulley system to hoist material. The rope is rated to withstand 500N of tension. What is the minimum time the construction worker can hoist 93 kg of material, intially...