Anet force of fnet acts on an object, causing the object to accelerate at a rat of 9m/s/s. what is the acceleration rate in a second trial, if a new net force of 2fnet acts on the same object?

a) 3m/s/s
b) 4.5m/s/s
c) 18m/s/s
d) 81m/s/s

Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.

If a negatively charged particle is placed at rest in an electric potential field that increases in the positive x-direction, what will the particle do? a. accelerate in the positive x-direction b. remain at rest c. accelerate in the negative x-direction

Think you could get me the answers ?