Question

A propeller consists of two blades each 3.6 m in length and mass 108 kg each....

A propeller consists of two blades each 3.6 m in length and mass 108 kg each. The propeller can be approximated by a single rod rotating about its center of mass. The propeller starts from rest and rotates up to 1,210 rpm in 30 seconds at a constant rate. (Enter the magnitudes.) What is the angular momentum (in kg · m2/s) of the propeller at t = 10 s?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

To solve this problem , first we will calculate the Moment of Inertia of the Propeller.We will consider the propeller as a rod rotating around one of it's extreme . Then we will be calculating the angular acceleration of the propeller . From this we will calculate the Angular Momentum at t= 10 s using the formula

Therefore,

Angular Momentum at t= 10 s is 3.94 x 104 kg m2s-1

Hope this Helps!!

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
An airplane propeller is 2.00 m in length (from tip to tip) with mass 99.0 kg...
An airplane propeller is 2.00 m in length (from tip to tip) with mass 99.0 kg and is rotating at 2900 rpm (rev/min) about an axis through its center. You can model the propeller as a slender rod. What is its rotational kinetic energy? Suppose that, due to weight constraints, you had to reduce the propeller's mass to 75.0% of its original mass, but you still needed to keep the same size and kinetic energy. What would its angular speed...
A rotating cylindrical rod of mass m=4 Kg and length l=1 meter is connected to a...
A rotating cylindrical rod of mass m=4 Kg and length l=1 meter is connected to a falling weight of 300 grams with a 2 meters string (Maximum distance covered by the falling weight). The distance from the wound string to the axis of rotation is 300 mm. The time taken by the falling weight to halfway is 2 seconds and to the bottom is 2.7 seconds. Change of angular momentum in the spinning rod Mass (Kg) Moment of Inertial of...
A rotating cylindrical rod of mass m=4 Kg and length l=1 meter is connected to a...
A rotating cylindrical rod of mass m=4 Kg and length l=1 meter is connected to a falling weight of 300 grams with a 2 meters string (Maximum distance covered by the falling weight). The distance from the wound string to the axis of rotation is 300 mm. The time taken by the falling weight to halfway is 2 seconds and to the bottom is 2.7 seconds. If we replace the 300-gram falling weight with the 2 Kg weight, it takes...
A rod of length l=1.1m and mass M= 5.5kg joins two particles with masses m1 =4.8kg...
A rod of length l=1.1m and mass M= 5.5kg joins two particles with masses m1 =4.8kg and m2 = 2.8kg, at its ends. The combination rotates in the xy-plane about a pivot through the center of the rod with the linear speed of the masses of v= 3.5 m/s. (Moment of inertia of a uniform rod rotating about its center of mass I= 1 12 M l2 ) angularmomentum a) Calculate the total moment of inertia of the system I...
A rod of length l=2.2m and mass M= 9.7kg joins two particles with masses m1 =12.9kg...
A rod of length l=2.2m and mass M= 9.7kg joins two particles with masses m1 =12.9kg and m2 = 5.0kg, at its ends. The combination rotates in the xy-plane about a pivot through the center of the rod with the linear speed of the masses of v= 12.9 m/s. (Moment of inertia of a uniform rod rotating about its center of mass I= 1 12 M l2 ) a) Calculate the total moment of inertia of the system I =...
There is a wind turbine that has three propeller blades (can be approximated as thin rods)...
There is a wind turbine that has three propeller blades (can be approximated as thin rods) that are 10.0kg in mass and 4.00m in length. The generator is not hooked up, so the blades can move freely. This means the only torque on the blades comes from the wind. The wind starts up and the blades go from rest to 3.00rad/s. a. What is the angular acceleration of the turbine blades? b. What is the moment of inertia (I) of...
A rod of length l=0.8m and mass M= 3.7kg joins two particles with masses m1 =4.5kg...
A rod of length l=0.8m and mass M= 3.7kg joins two particles with masses m1 =4.5kg and m2 = 2.8kg, at its ends. The combination rotates in the xy-plane about a pivot through the center of the rod with the linear speed of the masses of v= 3.5 m/s. (Moment of inertia of a uniform rod rotating about its center of mass I= 1 12 M l2 a) Calculate the total moment of inertia of the system b) What is...
(a) A light, rigid rod of length ℓ = 1.00 m joins two particles, with masses...
(a) A light, rigid rod of length ℓ = 1.00 m joins two particles, with masses m1 = 4.00 kg and m2 = 3.00 kg, at its ends. The combination rotates in the xy-plane about a pivot through the center of the rod (see figure below). Determine the angular momentum of the system about the origin when the speed of each particle is 4.80 m/s. (Enter the magnitude to at least two decimal places in kg · m2/s.) Two masses...
An airplane propeller is 2.68 m in length (from tip to tip) and has a mass...
An airplane propeller is 2.68 m in length (from tip to tip) and has a mass of 137 kg . When the airplane's engine is first started, it applies a constant torque of 1990 N⋅m to the propeller, which starts from rest. What is the angular acceleration of the propeller? Treat the propeller as a slender rod. What is the propeller's angular speed after making 5.00 rev ? How much work is done by the engine during the first 5.00...
A rod of length 10 m rotates about an axis perpendicular to its length and through...
A rod of length 10 m rotates about an axis perpendicular to its length and through its center. Two particles of masses m1 = 4.0 kg and m2 = 3.0 kg are connected to the ends of the rod. What is the angular momentum of the system if the speed of each particle is 2.5 m/s?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT