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# physics unit 5 help

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1. can anyone help me with these two questions

the answer is D but i dont understand why it cant be B as Momentum = mass x velocity and since mass is constant velocity increases

just tell me which formula do i use
2. Top one.
just look at the formula in the back and look for the ones you know the value of (T)
1/2m<c>^2 = 3/2KT

Where K is a constant

Second one, answer is B. As time period is constant. Therefore frequency is also constant.
3. (Original post by Harry.93)
Top one.
just look at the formula in the back and look for the ones you know the value of (T)
1/2m<c>^2 = 3/2KT

Where K is a constant

Second one, answer is B. As time period is constant. Therefore frequency is also constant.
thanks

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