g Describe the motion of an object with positive velocity and negative acceleration. Describe the motion of an object with negative velocity and positive acceleration. Describe the motion of an object with negative velocity and negative acceleration.

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

answer: b.

explanation:

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.