Question

mv = m times v
f/a = f a
t₂ + t₁ = t₂ t₁
mv = m v
δd/δt = δd δt

Explanation:

Step1: Analyze \( \boldsymbol{\frac{F}{a}} \)

In arithmetic, \( \frac{F}{a} \) means \( F \) divided by \( a \), so the operation is "divided by".

Step2: Analyze \( \boldsymbol{T_2 + T_1} \)

The expression \( T_2 + T_1 \) represents \( T_2 \) added to \( T_1 \) (or vice versa), so the operation is "plus".

Step3: Analyze \( \boldsymbol{mv} \) (second occurrence)

As seen in the first \( mv \) example, \( mv = m \times v \), so the operation is "times".

Step4: Analyze \( \boldsymbol{\frac{\Delta D}{\Delta T}} \)

In arithmetic, \( \frac{\Delta D}{\Delta T} \) means \( \Delta D \) divided by \( \Delta T \), so the operation is "divided by".

Answer:

• \( \frac{F}{a} \): divided by
• \( T_2 + T_1 \): plus
• \( mv \) (second): times
• \( \frac{\Delta D}{\Delta T} \): divided by