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(II) A wooden block is cut into two pieces, one with three
Chapter 1, Problem 38P(choose chapter or problem)
Problem 38P
(II) A wooden block is cut into two pieces, one with three times the mass of the other. A depression is made in both faces of the cut, so that a firecracker can be placed in it with the block reassembled. The reassembled block is set on a rough-surfaced table, and the fuse is lit .When the firecracker explodes inside, the two blocks separate and slide apart. What is the ratio of distances each block travels?
Questions & Answers
QUESTION:
Problem 38P
(II) A wooden block is cut into two pieces, one with three times the mass of the other. A depression is made in both faces of the cut, so that a firecracker can be placed in it with the block reassembled. The reassembled block is set on a rough-surfaced table, and the fuse is lit .When the firecracker explodes inside, the two blocks separate and slide apart. What is the ratio of distances each block travels?
ANSWER:
Solution 38P:
We have to find the ratio of distance travelled by each block when the firecracker in the reassembled block explode and the blocks was separated.
Step 1 of 4
Concept:
Law of conservation of linear momentum: When no external force acts on the system, then the final momentum of the system is equal to their initial momentum.
Frictional force always acts on the surface of the bodies in contact whenever their is
relative motion between between the two bodies.
Kinetic Energy: The energy possess by the body by virtue of its motion is known as kinetic energy of the body.
Work-Energy Theorem: The change in kinetic energy of the body is equal to the amount of work done.