Understanding Weight and Acceleration in a Bird's Flight Using Physics

In summary, a bird with a mass of 0.5 kg is sitting in a closed cage on a spring balance. The spring balance records a weight of 25 N. When the bird starts flapping its wings and accelerating upward at 2 m/s^2, the spring balance will still record a weight of 25 N due to the conservation of mass.
  • #1
vipulgoyal
26
0

Homework Statement


A bird is sitting in a large closed cage which is placed on a spring balance. It records a weight of
25 N. The bird (mass = 0.5 kg) flies upward in the cage with an acceleration of 2 m/s2. The spring
balance will now record a weight of -


Homework Equations





The Attempt at a Solution


i tried by calculating the mass of the spring balnce and then calculating the weight but the answer says same as earlier!1:grumpy:
 
Last edited:
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  • #2


the weight will be same, as the cage is closed. total mass is constant. weight = mg.
 
  • #3


supratim1 said:
the weight will be same, as the cage is closed. total mass is constant. weight = mg.

bird is not sitting now i mean its flapping its wings so that it is not in contact with the bars of the cage howz mass constant then
 
  • #4


Does anyone know a way out of this prob??
 
  • #5


the weight of the bird is supported by flapping its wings, which creates air pressure on the bottom of the cage. mass is always conserved.
 

What is acceleration in physics?

Acceleration in physics is the rate of change of an object's velocity over time. It is a vector quantity, meaning it has both magnitude and direction. It is measured in meters per second squared (m/s²).

How is acceleration calculated?

Acceleration is calculated by dividing the change in velocity (final velocity minus initial velocity) by the change in time. The equation for acceleration is a = (vf - vi) / t, where a is acceleration, vf is final velocity, vi is initial velocity, and t is time.

What is the difference between acceleration and velocity?

Velocity is the rate of change of an object's position over time, while acceleration is the rate of change of an object's velocity over time. Velocity is a vector quantity, but acceleration is a vector quantity that also includes the direction of change in velocity.

What is the difference between acceleration and deceleration?

Acceleration is the rate of change of an object's velocity, whether it is increasing or decreasing. Deceleration, on the other hand, specifically refers to the rate of decrease in velocity. It is essentially negative acceleration.

How does acceleration affect an object's motion?

Acceleration affects an object's motion by changing its velocity. If an object is accelerating in the same direction as its velocity, it will speed up. If it is accelerating in the opposite direction of its velocity, it will slow down. If the acceleration is in a perpendicular direction to its velocity, it will change direction without changing speed.

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