Question

In: Physics

1. The angle of an airplane propeller makes with the horizontal as a function of time...

1. The angle of an airplane propeller makes with the horizontal as a function of time is given by θ=(125rad/s)t+(42.5rad/s^2)t^2. estimate the instantaneous angular velocity at t=0.00s by calculating the average angular velocity from t=0.00s to t=0.010s

A. Estimate the angular speed at t = 0 by calculating the average angular speed between ti = 0 and tf = 0s.

B. Estimate the angular speed at t = 1.00 by calculating the average angular speed between ti = 1.00 and tf = 1.01s.

C. Estimate the angular speed at t = 2.00 by calculating the average angular speed between ti = 2.00 and tf = 2.01s.

D. Based on the above calculations, is the angular acceleration of the propeller negative, zero, or positive? Explain.

E. Calculate the average angular acceleration from t = 0.00 to 1.00s and from t = 1.00 to 2.00s.

F. Compare the angular acceleration calculated in E with the value of angular acceleration observed in the appropriate coefficient of the original equation for angle as a function of time. If they are not the same, explain why this might be?

Solutions

Expert Solution

please upvote...thank u:)

genius_generous answered 7 months ago
Next > < Previous

Related Solutions

A playground slide is 7.50 ft long and makes an angle of 34.0° with the horizontal....
A playground slide is 7.50 ft long and makes an angle of 34.0° with the horizontal. A 59.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) Choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? What is the change in potential energy as the child slides from the top to...
An airplane propeller is 2.28 m in length (from tip to tip) and has a mass...
An airplane propeller is 2.28 m in length (from tip to tip) and has a mass of 132 kg . When the airplane's engine is first started, it applies a constant torque of 1880 N⋅m to the propeller, which starts from rest. A) What is the angular acceleration of the propeller? Treat the propeller as a slender rod. B) What is the propeller's angular speed after making 5.00 rev ? C) How much work is done by the engine during...
An airplane propeller starts from rest and 2 seconds later it is rotating with an angular...
An airplane propeller starts from rest and 2 seconds later it is rotating with an angular speed of 350 rev/min. If the angular acceleration is constant, calculate (a) its angular acceleration. (b)how many revolutions did the propeller undergo during this time?
An airplane propeller starts from rest and 2 seconds later it is rotating with an angular...
An airplane propeller starts from rest and 2 seconds later it is rotating with an angular speed of 350 rev/min. If the angular acceleration is constant, calculate (a) Itsangularacceleration. (b)Howmanyrevolutionsdidthepropellerundergoduringthistime?
An airplane propeller is 1.99 m in length (from tip to tip) with mass 93.0 kg...
An airplane propeller is 1.99 m in length (from tip to tip) with mass 93.0 kg and is rotating at 2500 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...
3. The angle that a wheel rotates as a function of time "t" is given by...
3. The angle that a wheel rotates as a function of time "t" is given by θ (t) = 8.5–15.0t ^ 2 + 1.6t ^ 4 where θ is in radians and "t" in seconds. (a) Determine an expression for the instantaneous angular velocity ω. (b) Determine an expression for the instantaneous angular acceleration α. (c) Evaluate ω and α at t = 3.0s. (d) What is the average angular velocity at t = 2.0s and t = 3.0s? (e)...
An airplane is flying with a velocity of v0 at an angle of α above the...
An airplane is flying with a velocity of v0 at an angle of α above the horizontal. When the plane is a distance h directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog will the suitcase land? You can ignore air resistance. Take the free fall acceleration to be g.
An airplane is flying with a velocity of v0 at an angle of α above the...
An airplane is flying with a velocity of v0 at an angle of α above the horizontal. When the plane is a distance h directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog will the suitcase land? You can ignore air resistance. Take the free fall acceleration to be g.
class Airplane – highlights -- modelID : String -planeType: String //”propeller” “jet” --fuelOnBoard : int --fuelCapacity:...
class Airplane – highlights -- modelID : String -planeType: String //”propeller” “jet” --fuelOnBoard : int --fuelCapacity: int //gallons …………... Assume getters and setters, toString(), constructor with parameters and constructor …………… Write lambdas using a standard functional interface to: a) Given a plane object and “propeller” or “jet” as an input, determine if the given plane matched the given type b) Output the plane description and “plane needs fuel” if fuel on board is less than 80% of fuel capacity c)...
QUESTION 1 If the metallic ball is launched at an angle of 25° above the horizontal...
QUESTION 1 If the metallic ball is launched at an angle of 25° above the horizontal at a speed of 14 m/s. The ball returns to level ground. Which combination of changes must produce an increase in time of flight of a second launch? decrease the launch angle and decrease the ball’s initial speed increase the launch angle and decrease the ball’s initial speed decrease the launch angle and increase the ball’s initial speed increase the launch angle and increase...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT