Figure 2 V3 V4 m3 m4 soft and sticky glue Two carts, labeled 3 and 4, are headed toward each other along a level track, as shown in Figure 2, above. Both carts roll without friction and the only significant horizontal forces acting on the carts are the forces that they exert on each other. These two carts have sticky glue on the ends that will collide, so that after the collision they will remain attached to each other and roll away as a single object. Cart 3 has a mass of 1.24 kg. Before the collision it was moving to the right with a speed v3 of 2.7 m/s. Cart 4 has a mass of 3.22 kg. Before the collision it was moving to the left with a speed v4 of 2.5 m/s. The two carts had a completely inelastic collision (they stuck together). Calculate the change in kinetic energy (in units of joules) during the collision (the difference between the final kinetic energy of the two carts moving together and the combined kinetic energy of the two carts before the collision). The sign of your answer is important. A positive answer indicates an increase in kinetic energy during the collision.

Jae throws a 0,350kg ball so that it is traveling at 7.50m/s toward a wall, approaching the wall at an angle of 35.0⁰ as shown in the figure to the right. After hitting the wall, the speed of the ball is still 7.50m/s but its direction has changed and it is now traveling at an angle of 35.0° away from the wall as shown to the right. a) Sketch on your paper a figure like the one shown to the right and show the vectors for the momentum before impact, PB, the momentum after impact, PA, and use them to find Ap, the change in momentum for the ball. Clearly label each vector. b) Calculate the sign and magnitude of Apx, the change in momentum in the x direction. c) Calculate the sign and magnitude of Apy the change in momentum in the y direction. d) If the collision lasts for 0.150 seconds, find the magnitude of the average force on the ball during the collision. What is the direction of the average force on the ball during the collision? Answer this by showing an arrow and label it as Fave-…

Question 4 Determine the reaction at the supports for the following system E |-3-1-3-1 -3 -1 -3-1

If the bird's mass is 82 g, what is the maximum net vertical force exerted on the bird?Can someone help me solve these two questions? I thought it was a direct plug into f=ma.