Answer to Question #18135 in Mechanics | Relativity for Emma Wallbrown
A student moves a box of books down the hall by pulling on a rope attached to the box. The student pulls with a force of 176 N at an angle of 24.4◦ above the horizontal. The box has a mass of 33.4 kg, and μk between the box and the floor is 0.22.
The acceleration of gravity is 9.81 m/s2 . Find the acceleration of the box. Answer in units of m/s2
Let us find horizontal net force. Horizontal student's force is 176N*cos(24.4) = 160.28 N Then vertical student's force is sqrt(176^2-160.28^2)=72.2N Then friction force is μk*(mg-72.2N) = 0.22(33.4*9.8 N - 72.2N) = 56.1 N Then acceleration is net force/mass and is equal to (160.28N-56.1N)/33.4 = 3.2 m/s^2
The clock is ticking. The coffee is brewing. The stress intensifies. And all you’ve written in the past 15 minutes…
APPROVED BY CLIENTS
I appreciate the site services immensely, and it serves the purpose for what I need. However, honest feedback, I do find some of the college level writing less than adequate. The word's usage being weak and not very succinct thesis's or formatting seemed something I'd have to go back through the assignment and fix. That said, highly recommend still.