1. The problem statement, all variables and given/known data A 15 000kg loader traveling east at 20km/h turns south and travels at 25km/h. Calculate the change in the loader's a) kinetic energy b) linear momentum 2. Relevant equations ΔKE= 1/2mvf^2 –1/2mvi^2 Δp= mv2 –mv1 m= 15000 vi = 20km/h = 5.56m/s vf= 25km/h = 6.94m/s 3. The attempt at a solution Part A I think I got. Part B is where I am confused. I am using Δp= mv2 –mv1 I substitute the numbers in Δp= 15000*6.94 -15000*5.56 The magnitude of Δp that I arrive at is equal to 20 700...is that correct? Also, when I am trying to find the change in direction when subtracting vectors you simply add the opposite direction. so rather than using east, i add my vector pointing south and add the initial vector but pointing west? I then use this to calculate the angle for the direction. Is this right? I tried to add an image to show you my diagram...but can't seem to figure out how! Thanks in advance!