Physics Applications: Momentum, Impulse, and Recoil Calculations
Explore various physics scenarios involving momentum, impulse, and recoil in this collection. Calculate the impulse of net force, average net force, recoil velocity of a rifle, and initial speed of a bullet using principles of conservation of momentum. Solve problems related to multi-dimensional impulses and ballistic pendulum measurements. Enhance your understanding of how forces interact to produce motion in different scenarios.
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Momentum-Impulse Physics 513
Multi-Dimensional Impulse A soccer ball has a mass of 0.40 kg. Initially it is moving to the left at 20 m/s, but then it is kicked. After the kick it is moving at 45 upward and to the right with speed 30 m/s. Find the impulse of the net force and the average net force, assuming a collision time t = 0.010 s
Conservation of Momentum Physics 513
On Your Mark A marksman holds a rifle of mass mR= 3.00 kg loosely, so it can recoil freely. He fires a bullet of mass mB= 5.00 g horizontally with a velocity relative to the ground of vB= 300 m/s. What is the recoil velocity vRof the rifle?
Bang! A ballistic pendulum comprises a simple system for measuring the speed of a bullet. A bullet of mass mBmakes a completely inelastic collision with a block of wood of mass mW, which is suspended like a pendulum. After the impact, the block swings up to a maximum height y. In terms of y, mB, and mW, what is the initial speed voof the bullet?
