An object moving in the zy-plane is subjected to the force F = (2xyî +x²j) N, where x and y are in m. Part A The particle moves from the origin to the point with coordinates (a, b) by moving first along the z-axis to (a,0), then parallel to the y-axis. How much work does the force do? Express your answer in terms of the variables a and b. W = Submit Part B W = IVE| ΑΣΦ Submit 3 Request Answer The particle moves from the origin to the point with coordinates (a, b) by moving first along the y-axis to (0, b), then parallel to the z-axis. How much work does the force do? Express your answer in terms of the variables a and b. 145) ΑΣΦ ? Request Answer ?

You push a box up a ramp (friction between the box and the ramp is not negligible). Call the initial state when you begin to push the box. Call the final state after you have pushed the box up the ramp a distance of 0.5 m and it is moving with a speed of 2 m/s For which of the following systems does the energy remain constant?A. System: box + ramp + Earth + youB. System: boxC. System: box + ramp + EarthD. System: youE. System: box + rampF. None of the above.   Two cars are driving down the road. They notice that they are going to crash, so both drivers slam on the brakes. The cars skid, but still collide. The cars stick together and eventually slide to a stop. Call the initial state just before the drivers apply the brakes and the final state just after the collision had occurred. Treat this situation as realistically as possible. For which of the following systems does the energy remain constant?A. System: both carsB. System: both cars + the groundC. System: the second carD. System:…

(Figure 1) is the force-versus-position graph for a particle moving along the x-axis. Figure Fx (N) 4 2 0 -2 -4 1 2 3 -x (m) ▼ Part A Determine the work done on the particle during the interval 0-1 m. Express your answer with the appropriate units. Wo-1 = Units You have already submitted this answer. Enter a new answer. No credit lost. Try again. Submit Part B ΠΑ W1-2 = Submit Value Previous Answers Request Answer Determine the work done on the particle during the interval 1-2 m. Express your answer with the appropriate units. μA Value Units ? www Previous Answers Request Answer ? Units input for part B

A loaded grocery cart is rolling across a parking lot in a strong wind. You apply a constant force F = (34 N)i – (39 N)j to the cart as it undergoes a displacement 3 = (-9.1 m)î – (4.0 m)j. Part A How much work does the force you apply do on the grocery cart? Express your answer in joules. DA ΑΣφ W = J %D