Deceleration and Acceleration: Opposites or One and the Same?

AI Thread Summary
Deceleration in one direction can be viewed as acceleration in the opposite direction, as both concepts relate to changes in velocity. When slowing down while moving upwards in an elevator, one is technically accelerating downwards. This perspective aligns with the definition of acceleration as a change in speed, regardless of the direction of movement. For example, reducing speed from 100 mph to 50 mph can be interpreted as an acceleration towards negative speed. Thus, deceleration and acceleration are interconnected concepts rather than strictly opposites.
Balsam
Messages
226
Reaction score
8

Homework Statement


If you decelerate in one direction, are you accelerating in the opposite direction? Ex. You are standing in an elevator and are slowing down, going upwards- are you accelerating downwards since you're decelerating in the opposite direction, upwards?

Homework Equations


-

The Attempt at a Solution


I think this is true.
 
  • Like
Likes berkeman
Physics news on Phys.org
Yea, I agree,
While driving if you go from 100mph to 50mph, then in the other direction you are going from -100mph to -50mph, if you take the definition of acceleration as an increase in speed, then yes you are technically accelerating in the other direction even while moving less than 0mph towards it
 
  • Like
Likes berkeman
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
Thread 'Voltmeter readings for this circuit with switches'
TL;DR Summary: I would like to know the voltmeter readings on the two resistors separately in the picture in the following cases , When one of the keys is closed When both of them are opened (Knowing that the battery has negligible internal resistance) My thoughts for the first case , one of them must be 12 volt while the other is 0 The second case we'll I think both voltmeter readings should be 12 volt since they are both parallel to the battery and they involve the key within what the...
Back
Top