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a bullet traveling horzontally at a speed of 350m/s hits board perpendicular to its surface passes through n emerges on the oth...Question
A bullet traveling horizontally at a speed of 350m/s hits a board perpendicular to its surface, passes through and emerges on the other side at a speed of 190m/s .
If the board is 3.80cm thick, how long does the bullet take to pass through it?
If the board is 3.80cm thick, how long does the bullet take to pass through it?
Answers
bobpursley
average speed going through is (350+190)/2
time=distance/avgvelocity
time=distance/avgvelocity
Ed
0.00043