A2.9 gram bullet is shot into a tree stump. it enters at a velocity of 304 m/sec and comes to rest after having penetrated the stump in a straight line. it takes 0.00043 sec to come to a stop after striking the stump. what was the force on the bullet during impact?
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Physics, 22.06.2019 09:40, wi8wuwj283jendjdudjd
When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great. d) about 10 times as great.
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Physics, 22.06.2019 15:30, tamaraquirozmorales
Can you match these to the correct definition
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Physics, 22.06.2019 17:40, yoongnzl
Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.
Answers: 1
A2.9 gram bullet is shot into a tree stump. it enters at a velocity of 304 m/sec and comes to rest a...
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