In order for an object to accelerate, what must change?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Ineed to find the answer of this question because i dont understand it

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.