The figure below shows a stationary block of mass 1 kg resting on a frictionless surface and attached to one end of a spring with spring constant 900 N/m. The spring is initially at its relaxed length and is connected to a rigid wall. A bullet of mass 5 g moving with speed 400 m/s is fired into the block and emerges from the other end of the block. The collision is not elastic. If the block moves a distance of 5 cm to the right after impact, find the speed v of the bullet after the collision and before it hits the wall. Assume that the block doesn't start moving until the bullet completely emerges from the block. (Hint: conserve momentum during the collision, conserve energy after the collision.) 400 m/s www 5 cm www

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Chapter1: Units, Trigonometry. And Vectors
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The figure below shows a stationary block of mass 1 kg
resting on a frictionless surface and attached to one end of
a spring with spring constant 900 N/m. The spring is
initially at its relaxed length and is connected to a rigid
wall. A bullet of mass 5 g moving with speed 400 m/s is
fired into the block and emerges from the other end of the
block. The collision is not elastic. If the block moves a
distance of 5 cm to the right after impact, find the speed v
of the bullet after the collision and before it hits the wall.
Assume that the block doesn't start moving until the bullet
completely emerges from the block. (Hint: conserve
momentum during the collision, conserve energy after the
collision.)
400 m/s
www
5 cm-
Transcribed Image Text:The figure below shows a stationary block of mass 1 kg resting on a frictionless surface and attached to one end of a spring with spring constant 900 N/m. The spring is initially at its relaxed length and is connected to a rigid wall. A bullet of mass 5 g moving with speed 400 m/s is fired into the block and emerges from the other end of the block. The collision is not elastic. If the block moves a distance of 5 cm to the right after impact, find the speed v of the bullet after the collision and before it hits the wall. Assume that the block doesn't start moving until the bullet completely emerges from the block. (Hint: conserve momentum during the collision, conserve energy after the collision.) 400 m/s www 5 cm-
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