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Grade: 11

                        

a plate of mass m is held at rest by firing bullets from below. each bullet has a mass m, velocity u(up) just before hitting and stops after hitting the platefor a moment and falls. determine the number of bullets striking the plate per unit time?

4 years ago

Answers : (1)

Batman
11 Points
							
Force Down = Force Up
m * g = Rate Of Change of Momentum up
m * g = Rate of bullets * m * u
Rate of bullets = g/u (g=gravity)
4 years ago
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