nesan said:Homework Statement
Three movers are applying forces F1 = 100 N [W20°N], F2 = 200 N [E40°S], and F3 = 300 Non a 300-kg grand piano. If μK for the piano is 0.10, determine
a) the net force acting on the piano
b) the acceleration of the piano
The Attempt at a Solution
I got an answer of 395 N going down and 276.9 going left. (Actually is East, not left.)
Fnet = 482.38N
But the answer sheet says 106N
:(
Help please.
SammyS said:
nesan said:
That's wrong.nesan said:
To calculate the force needed to lift a grand piano, you would need to know the weight of the piano and the acceleration due to gravity. The formula for force, F = m * a, can then be used to calculate the force needed. Simply plug in the weight of the piano in kilograms for m, and the acceleration due to gravity (9.8 m/s^2) for a. This will give you the force needed to lift the piano in Newtons.
To calculate the acceleration of a grand piano, you would need to know the force applied to the piano and its mass. The formula for acceleration, a = F/m, can then be used to calculate the acceleration. Simply plug in the force applied in Newtons for F, and the mass of the piano in kilograms for m. This will give you the acceleration of the piano in meters per second squared.
The shape and size of a grand piano can affect its acceleration in a few ways. A larger piano will have a greater mass, which will require more force to accelerate. The shape of the piano can also affect its aerodynamics, which can impact the amount of force needed to move it. Additionally, the shape and size of a grand piano can affect its center of mass, which can impact its stability and acceleration when being moved.
Yes, it is possible to calculate the force and acceleration of a grand piano while it is in motion. However, this would require additional information such as the velocity and direction of the piano's movement. The formulas for force and acceleration would then need to be adjusted to take into account the piano's velocity and direction.
Knowing the forces and acceleration of a grand piano can be useful for a variety of reasons. It can help determine the amount of force needed to lift or move the piano, as well as the best angle and direction to apply the force. It can also be helpful for understanding the piano's stability and potential risks of tipping or falling. Additionally, this information can be useful for designing and constructing equipment used for moving pianos, such as dollies or cranes.