hello I need help solving those questions please

0 a A single constant force F = (2.88i + 4.99j)N acts on a 3.59kg particle. Calculate the work done by this force if the particle moves from the origin to the point having the vector position r = (1.74i 3.13j)m. Submit Answer Tries 0/10 What is the speed of the particle at r if its speed at the origin is 4.58m/s? Submit Answer Tries 0/10 What is the change in the potential energy of the system? Submit Answer Tries 0/10 0 a (3) A m = 2.62 kg mass starts from rest and slides a distance d down a frictionless e = 31.5 deg incline. While sliding, it comes into contact with an unstressed spring of negligible mass, as shown in the gure below. The mass slides an additional 0.197 m as it is brought momentarily to rest by compression of the spring (k = 433 Mm). Calculate the initial separation d between the mass and the spring. Submit Answer Tries 0/10 I'\" ('7) Aparticle of mass 5.35 kg is released from rest at point A (the highest point) and slides on the frictionless track shown in the figure where h5 = 4.39 m, hb = 3.60 m, and hc = 2.29 m. u; m ('. n v v v (7a) Determine the particle's speed at point B. Submit Answer Tries 0/10 (7b) Determine the net work done by the force of gravity in moving the particle from A to C. Submit Answer Tries 0/10 "a An m = 3.48kg block situated on a rough incline is connected to a spring of negligible mass having a spring constant of k = 108N/m, as seen in the figure below. The pulley is frictionless. The block is released from rest when the spring is unstretched. The block moves 17.6cm down the incline before coming to rest. Assume e = 34.0\". Calculate the coefficient of kinetic friction between block and incline. Submit Answer Tries 0/10 k m _____9[_\\_\\ "a A 4.74kg block free to move on a horizontal, frictionless surface is attached to one end of a light horizontal spring. The other end of the spring is xed. The spring is compressed 0.109m from equilibrium and is then released. The speed of the block is 1.09m/s when it passes the equilibrium position of the spring. The same experiment is now repeated with the frictionless surface replaced by a surface for which the coefcient of kinetic friction is 0.295. Determine the speed of the block at the (old) equilibrium position of the spring. Submit Answer Tries 0/10 0 a A thin rod, 26.7cm long with a mass of 1.29kg, has a ball with diameter 7.99cm and mass 2.11kg attached to one end. The arrangement is originally vertical and stationary, with the ball at the top. The apparatus is free to pivot about the bottom end of the rod. After it falls through 90, what is its rotational kinetic energy