A Super Dart of Mass 20 G, Traveling at 350

question 59

Multiple Choice

A super dart of mass 20 g, traveling at 350 m/s, strikes a steel plate at an angle of 30° with the plane of the plate, as shown in the figure. It bounces off the plate at the same angle but at a speed of 320 m/s. What is the magnitude of the impulse that the plate gives to the bullet?

• A) 0.52 N ∙ s
• B) 4.3 N ∙ s
• C) 300 N ∙ s
• D) 6.7 N ∙ s
• E) 0.30 N ∙ s

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Definitions:

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