An 8.0-g bullet is shot into a 4.0-kg block that is at rest on a frictionless horizontal surface, as shown in the figure. The bullet remains lodged in the block. The block then moves against a spring and compresses it by 3.7 cm as it comes to rest. The force constant (spring constant) of the spring is 2500 N/m What was the initial speed v of the bullet? elled Hint: Two part problem. Careful with standard units. 1) To fully compress the spring, the combined bullet + block mass must have a certain initial velocity as it just comes into contact with the spring. 2) That velocity is the final velocity just after the initial collision. Use conservation of momentum to solve for the initial bullet velocity. O 460 m/s O 440 m/s O 520 m/s O 480 m/s
An 8.0-g bullet is shot into a 4.0-kg block that is at rest on a frictionless horizontal surface, as shown in the figure. The bullet remains lodged in the block. The block then moves against a spring and compresses it by 3.7 cm as it comes to rest. The force constant (spring constant) of the spring is 2500 N/m What was the initial speed v of the bullet? elled Hint: Two part problem. Careful with standard units. 1) To fully compress the spring, the combined bullet + block mass must have a certain initial velocity as it just comes into contact with the spring. 2) That velocity is the final velocity just after the initial collision. Use conservation of momentum to solve for the initial bullet velocity. O 460 m/s O 440 m/s O 520 m/s O 480 m/s
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter9: Energy In Nonisolated Systems
Section: Chapter Questions
Problem 51PQ: A small 0.65-kg box is launched from rest by a horizontal spring as shown in Figure P9.50. The block...
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