A 6.67 kg bowling ball moves at 4.65 m/s. How fast must a 2.6 g Ping-Pong ball move
so that the two balls have the same kinetic
energy?
1. 230.618
2. 108.275
3. 189.271
4. 254.173
5. 72.0752
6. 66.6409
7. 77.6273
8. 165.561
9. 235.521
10. 145.685
Answer in units of m/s.

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Explanation:

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we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle