Answer:
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system.
Explanation:
Answer: Object B
The velocity of object A is depicted in the graph as a straight line (constant speed therefore no acceleration).
The graph indicates that the velocity of object B increases (the object is accelerating).
<span>Force = Work done / distance = 4Nm / 2m = 2N</span>
use F = ma
F : force m : mass a : acceleration
so
f = 5kg * 20 m/s2 = 100 N
