Well I think I definitely get this wrong. I thought the acceleration was not constant due to the air resistant and it is decreasing to 0 as terminal velocity reached.
I can't remember if the question said or not but usually for those kind of questions they ignore air resistance
The question said that they wanted to find the terminal velocity, which is reached when air resistance is equal to que force of gravity, velocity is constant and acceleration=0
The question said that they wanted to find the terminal velocity, which is reached when air resistance is equal to que force of gravity, velocity is constant and acceleration=0
Yes but how can you calculate that from a time and a distance. There isn't enough info. You can't use suvat, and we aren't even told when it reaches terminal velocity.
The question said that they wanted to find the terminal velocity, which is reached when air resistance is equal to que force of gravity, velocity is constant and acceleration=0
But to reach terminal velocity won't it need to accelerate first?
Yes but how can you calculate that from a time and a distance. There isn't enough info. You can't use suvat, and we aren't even told when it reaches terminal velocity.
If it had reached terminal velocity surely then all the forces would be balanced and it would be travelling at a constant velocity? As such, velocity = distance / time.
If it had reached terminal velocity surely then all the forces would be balanced and it would be travelling at a constant velocity? As such, velocity = distance / time.
I think there were two questions on terminal velocity - correct me if I'm wrong - one on paper cup cases, and the other which featured the graph and table on the last page.
I think there were two questions on terminal velocity - correct me if I'm wrong - one on paper cup cases, and the other which featured the graph and table on the last page.
I remember using a graph to see the time at which it reaches Vt and then using Suvat with u as 0 because it accelerates to reach Vt
I think there were two questions on terminal velocity - correct me if I'm wrong - one on paper cup cases, and the other which featured the graph and table on the last page.
The graph wasn´t the second part of the question? Didn´t they ask to find the terminal velocity from the graph?