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watching
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27 May 2018
1) [8 pts) A bullet (mass: 5.00 grams) moving with an initial speed of 400. m/s is fired into, and passes through, a block whose mass is 1.0 kg, as shown in the diagram. The block, initially at rest on a flat and frictionless surface, is connected to a spring with a spring constant of k=900. N/m. After the collision, the block moves 5.00 cm to the right before starting to rebound. a. What is the speed at which the bullet emerges from the block? b. What is the mechanical energy lost in the collision? bullet mm before collision after collision
1) [8 pts) A bullet (mass: 5.00 grams) moving with an initial speed of 400. m/s is fired into, and passes through, a block whose mass is 1.0 kg, as shown in the diagram. The block, initially at rest on a flat and frictionless surface, is connected to a spring with a spring constant of k=900. N/m. After the collision, the block moves 5.00 cm to the right before starting to rebound. a. What is the speed at which the bullet emerges from the block? b. What is the mechanical energy lost in the collision? bullet mm before collision after collision
Elin HesselLv2
29 May 2018
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