# Maximum torque

## Homework Statement

2. Homework Equations [/B]
I was given this info
r=1.5 m
d=3 m
F= 50
angle= 110 degrees

## The Attempt at a Solution

T=Fsin
T= (1.5)(50)sin(110)
T=70 N

I attempted the solution^ to get (maximum) torque.

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i am unsure if my answer is correct or not*

SteamKing
Staff Emeritus
Homework Helper
You need to specify units for all the given quantities.

The units of torque are not newtons. What are they?

## Homework Statement

2. Homework Equations [/B]
I was given this info
r=1.5 m
d=3 m
F= 50 N
angle= 110 degrees

## The Attempt at a Solution

T=Fsin
T= (1.5)(50)sin(110)
T=70 J (joules)

I attempted the solution^ to get (maximum) torque.

SteamKing
Staff Emeritus
Homework Helper
Although mathematically torque and work have the same units, the convention is to use units of F*L when talking about torque, and joules when talking about work.

thank you for notifying me about the units being used in this problem, so how would i go about getting MAXIMUM TORQUE?

SteamKing
Staff Emeritus
Homework Helper
thank you for notifying me about the units being used in this problem, so how would i go about getting MAXIMUM TORQUE?
Change the angle of application of the force.

would it be 180-110=10 degrees
so
T=Fsin
T= (1.5)(50)sin(10)
T=13.0 J (joules) ???

SteamKing
Staff Emeritus
Homework Helper
would it be 180-110=10 degrees

so
T=Fsin
T= (1.5)(50)sin(10)
T=13.0 J (joules) ???
Think about it like this For what angle is the sine a maximum?

90?

T=Fsin
T= (1.5)(50)sin(90)
T=75 (joules)

gneill
Mentor