An existing levee has a top width of 10 feet, a top ele- vation of 10 feet above the base, and 3: 1 (horizontal: vertical) slopes on both sides. if the levee is to be raised to an ele- vation of 15 feet and must meet new standards requiring a 12-foot top width, how much additional land space (in ft2) will be needed for the base of the levee per mile of levee length? assume side slopes remain 3: 1. show all work, and support your answer with appropriate drawings and schematics

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.

I’ve been stuck on this for a while