I would say mass, and weight.
First we have to calculate the time taken to travel the distance 30 m, is
.
Now from equation of motion,

Given,
.
As object starts from rest, so u = 0.
Substituting these values in above equation, we get
.
Thus, the acceleration is 
It's number three on your worksheet. ;)
Answer:
0.5 Hz
Hope you find this helpful. Please mark me as brainliest!
In a way it’s true because you can get a ticket for getting caught littering