Answer:
the unit of work is derived unit because joule is defined the work done by the force aftab 1 newton causing the displacement of one metre something newton metre(n-m) is also used to measuring work.
Answer:
Mechanical advantage = 2.875
Explanation:
Given:
A diagram is shown below for the above scenario.
Length of ramp (Effort arm) = 4.6 m
Height of truck bed ( Resistance length) = 1.6 m
Mechanical advantage (MA) is the ratio of effort arm and resistance length.
So, mechanical advantage is given as,

Equation: Mass x Velocity = Momentum
Answer: 93 x 13 = 1,209
Using the picture provided the forces are added together, because they are putting force on an object the same direction, thus the forces are added.
I don't know what's in your house! lol. try naming things like: ball, lamp, cup, bowl.