Homework 3 hints 2/123. vis a constant. Use particle kinematics equation to calculate a: a=±s2202vva=+Δ.2/130 In order to calculate Bρ, you have to calculate Bvand . naStep 1.calculate a(const.) due to strong 0x≠wind. The key point here is to find special point on this projectile. C is this point!!!!! In rectangular coordinates: 120'cx=and 20012cxcxcxxvtat=++Similar you can derive the second equation In y direction: 0cy=Solve the above two equations, you will get 3.05ct=sec and ft/sec7.0xa=2. Step2. Find the velocity at B. Important:notice the angle is 45Dxy⇒=. From kinematics of particle, you have two equations in terms of
This is the end of the preview.
access the rest of the document.