An air-hockey puck moving with velocity (4î + 3ĵ) m/s hits the side board and leaves it with velocity (-4î + 3ĵ) m/s. The contact lasts 0.02 s. What is its average acceleration during the bounce?

PhysicsMediumHigh School (11–12)Mechanics › Vectors and Motion in a Plane

An air-hockey puck moving with velocity $(4\hat{i} + 3\hat{j})\ \text{m/s}$ hits the side board and leaves it with velocity $(-4\hat{i} + 3\hat{j})\ \text{m/s}$ . The contact lasts $0.02\ \text{s}$ . What is its average acceleration during the bounce?

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