1. Problem, purpose, or research question: The problem or research question is the single most important part of the scientific method. Every part of your project done to answer this question. The research question is sometimes formed as a statement and is called the "problem" or "problem statement"
This is psychology and not physics by the way , it occurs from direct instruction or observation <span />
Answer:15metre per second squ
I
Explanation:
acceleration=(final velocity-initial velocity)÷t
acceleration=(180-120)÷4
acceleration=60÷4
acceleration=15 metre per second square
Im not really sure about this im stuck to
PV = 400 x 0.08 = 32 J
Hope this helps
