Graphing either Δt versus ω or ω versus Δt gives a straight line. In the graph shown, we chose to plot Δt on the vertical axis and ω on the horizontal axis because the theoretical kinematic equation gives position as a function of rotation. From the equation for the line of best fit given, determine the frictional torque.

**Your engineering team has been assigned the task of measuring the properties of a new jet-engine turbine. You've previously determined that the turbine's moment of inertia is 2.6kg*m^2. The next job is to measure the frictional torque of the bearings. Your plan is to run the turbine up to a predetermined rotation speed, cut the power, and time how long it takes the turbine to reduce its rotation speed by 50%. Your data are as follows: **

rpm sec
1500 19
1800 22
2100 25
2400 30
2700 34

Question

Graphing either Δt versus ω or ω versus Δt gives a straight line. In the graph shown, we chose to plot Δt on the vertical axis and ω on the horizontal axis because the theoretical kinematic equation gives position as a function of rotation. From the equation for the line of best fit given, determine the frictional torque.

**Your engineering team has been assigned the task of measuring the properties of a new jet-engine turbine. You've previously determined that the turbine's moment of inertia is 2.6kg*m^2. The next job is to measure the frictional torque of the bearings. Your plan is to run the turbine up to a predetermined rotation speed, cut the power, and time how long it takes the turbine to reduce its rotation speed by 50%. Your data are as follows: **

rpm   	sec
1500 	19
1800 	22
2100 	25
2400 	30
2700 	34

anonymous · Answer

http://session.masteringphysics.com/problemAsset/1429716/4/12.72.jpg ^ picture of graph

anonymous · Answer

wtffffff I cant do that! I just woke up!

anonymous · Answer

Your question is hurting my brain!

anonymous · Answer

I know right!?

anonymous · Answer

The turbine seems to be speeding up as time increases, which is contradictory to the problem statement.