Understanding Power and Acceleration: Why Object Acceleration is Not Constant

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In summary, power is being provided at a constant rate to an object, but since power is changing with respect to time and work done is equal to force multiplied by displacement, the acceleration of the object is not constant. This is assuming that the object has not reached its terminal velocity.
  • #1
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Homework Statement


Power is being provided at a constant rate to an object. Suggest why the accelration of the object is not constant.


The Attempt at a Solution



power is defined as the rate of change of work

P=W/T

Power is changing with respect to time. This increases the work done by the object. Since work done=fs (f=ma)
The acceleration is not constant.

Are my points valid or wrong
 
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  • #2
fffff said:
Power is being provided at a constant rate to an object. Suggest why the
Power is changing with respect to time.
Perhaps it would be better if you reworded your answer.
 
  • #3
ok so energy is changing with respect to time ?
 
  • #4
fffff said:
ok so energy is changing with respect to time ?
Much better :approve: This of course assumes that the object has not reached its terminal velocity.
 
  • #5
since energy=work done
and workdone=fs
the acceleration of the object is not constant
 

Related to Understanding Power and Acceleration: Why Object Acceleration is Not Constant

1. What is power and acceleration?

Power and acceleration are both physical concepts used to describe the movement and force of objects. Power is the rate at which work is done or energy is transferred, while acceleration is the rate of change of an object's velocity.

2. How are power and acceleration related?

The two concepts are related through the equation P = F x v, where P is power, F is force, and v is velocity. This equation shows that the greater the force and/or velocity, the greater the power.

3. What is the difference between power and acceleration?

The main difference between power and acceleration is that power involves both force and velocity, while acceleration only looks at changes in velocity over time. Additionally, power is a scalar quantity, while acceleration is a vector quantity.

4. How is power and acceleration measured?

Power is typically measured in units of watts (W) or horsepower (hp), while acceleration is measured in units of meters per second squared (m/s²). These measurements can be obtained through various scientific instruments and calculations.

5. What are some real-world examples of power and acceleration?

Examples of power and acceleration can be seen in everyday activities such as riding a bike, driving a car, or throwing a ball. In these scenarios, the amount of force applied and the speed at which the objects are moving determine the power and acceleration involved.

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