math math math Problem 2 An enraged elephant charging at v-2.1 m/s runs into a h
ID: 1872849 • Letter: M
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math math math Problem 2 An enraged elephant charging at v-2.1 m/s runs into a hovering fly Assuming that the collision is elastic, at what speed does the fly rebound? (approxima to a reasonable precision) Problem 3,A barge with a mass M1=1500 ton crosses a lake from West to East at v1-6 m/s, in heavy fog. Another barge with a mass M2-3000 ton crosses the lake from south to north moving at v2-4 m/s. The barges collide sideways. Immediately after the collision, the second barge find its course deflected by 16.7 degree to the west, and its speed 6mls 16.70 V MI reduced to V2-3.48 m/s. Find the velocity vector of the first barge after the collision.Explanation / Answer
2) When a very object collides elastically with a object of negligible mass then it start moving with a velocity twice the velocity of the heavy object in the same direction, while the velocity of larger object practically remain unchanged.
Therefore, velocity of the fly would become = 2*2.1 = 4.2 m/s.
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