- #1

- 5

- 0

**Which one of the quantities below has dimensions equal to ML/T**

^{2}a) mv

b) mv

^{2}

c) mv

^{2}/r

d) mrv

e) mrv

^{2}/r

^{2}

I tried splitting it up in M*(L/T)*1/T

which would lead me to mv*T

^{-1}and then I get stuck

Please help!

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter budd99
- Start date

- #1

- 5

- 0

a) mv

b) mv

c) mv

d) mrv

e) mrv

I tried splitting it up in M*(L/T)*1/T

which would lead me to mv*T

Please help!

- #2

- 12,122

- 160

Since it's multiple choice, how about examining each answer and seeing if it matches ML/T

For example:

a) mv = M L/T (is not ML/T

etc.

- #3

- 5

- 0

Since it's multiple choice, how about examining each answer and seeing if it matches ML/T^{2}

For example:

a) mv = M L/T (is not ML/T^{2})

etc.

I'm working on it, but what is the r in the answers? Also, why does the m become a capital M?

- #4

- 12,122

- 160

- #5

- 5

- 0

I took mv

(M(L/T)(L/T))/r

I assumed r = L since both are length measures so...

(M(LL/TT))/L

(M(LL/TTL)

M(L/TT)

M(L/T

I don't know if I should be equating r to L though...

- #6

- 12,122

- 160

That's correct. Yes, *r* has dimensions of Length, so use L for its dimension.

Share: