Answer:
need points
Step-by-step explanation:
is this a question
Answer:
<u>Work Done = 27.66 Joules</u>
Step-by-step explanation:
The work done is:

Where
F is the fore
d is the distance moved
is the angle
The force is "4"
The distance is the distance from (1,7) to (8,10)
The distance is the square root of change in y coordinates, squared and sum of change in x coordinates, squared. Hence, distance is:

The angle is gotten by the formula:

So, now:

Work Done = 
<u>Work Done = 27.66 Joules</u>
Distribute on the left side
7.4a+22.2=3.2a+43.2
Subtract 3.2a from both sides
4.2a+22.2=43.2
Subtract 22.2 from both sides
4.2a=21
Divide both sides by 4.2
a=5
Answer:a
Step-by-step explanation: