Recent content by wcwcaseman

I'm not sure if I'm correct in my assumption that v = 3i + (-8t +5)j also I don't see how the dot product could be used since we have the variable t ?

so ... v = 3i * (-8t +5)j v = (-24t +15)^1/2? and if so were do I go from there?

Homework Statement The position of a 5kg particle moving in the x-y plane varies as a function of time according to the expression r = [(3t + 1)m]i + [(-4t^2 +5t + 2)m]j (r is a vector I just didn't know how to make the arrow over head) Find the kinetic energy of the particle as a...