(Solved): A ball impacts a barrier and the Force vs Time graph below is obtained. 1. Wh ...

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A ball impacts a barrier and the Force vs Time graph below is obtained. 1. What is the time interval of the impact? 2. What is the average force during the collision of the ball and the barrier? 3. What is the impulse delivered to the ball? (Hint: calculate the area under the Force vs Time graph). Give the impulse the right sign (it is positive/negative depending if it is parallel/antiparallel to the velocity vector). 4. What is the change in momentum of the ball? 5. Suppose the ball has a mass of $$100\mathrm{g}$$ and its speed just before impact was measured to be $$1.2\mathrm{m}/\mathrm{s}$$. What is the speed of the ball just after the impact? (It helps to draw a picture showing your coordinate system.) 6. Is the initial momentum of the ball the same as the final momentum of the ball? If not, by how much do they differ?