Question

Given: t = f•L, where "t" is torque, "f" is force, and "L" is length.
What force (in pounds) must be applied to an 0.8 ft long torque
wrench to achieve the same torque generated by a 100 lb force
applied to an 0.5 ft long torque wrench?

Answer 1

given:
.8ft=L_1
100lb=F_2
.5ft=L_2
WTF:
F_1=?
T_2=?
WIN:
t=FL
Now, we just do it

Answer 2

first equation:
Plugin the 1 values to t=FL

Second equation:
Plug in the 2 values t=FL

Answer 3

eg:

Eq 1 is:
t=F*0.8

Answer 4

t=f.5ft

Answer 5

t=100lb x 0.8ft

Answer 6

close you used L_1 instead of L2

Answer 7

t=100lb x 0.5ft

Answer 8

much better, so now, we need to find T2

Answer 9

So T2=?

Answer 10

t2=50

Answer 11

good! so now they told us that we want to have the same torque so that means that T1 also =50

Answer 12

so plug that into the first eq

Answer 13

50=f x 0.8

Answer 14

peerfect so now we solve for f

Answer 15

how do you undo multiplication?