During a lightning flash, there exists a potential difference of Vcloud-Vground=1.2x10^9 V between a cloud and the ground. As a result, a charge of -25 C is transferred from the ground to the cloud.
Here, the problem asks for you to find how much work Wground-cloud is done on the charge by the electric force. I already found this myself, using Vb-Va=-Wab/q0. The work done is 3x10^10 Joules.
The part I don't get is the second part of this problem:
If the work done by the electric force were used to accelerate a 1100-kg automobile from rest, what would be its final speed?
I'm thinking I would have to use the law of conservation of energy somehow, but I'm pretty lost.
Please help! I would appreciate it very much if you could show me the work clearly and include the final answer. Thanks!
Here, the problem asks for you to find how much work Wground-cloud is done on the charge by the electric force. I already found this myself, using Vb-Va=-Wab/q0. The work done is 3x10^10 Joules.
The part I don't get is the second part of this problem:
If the work done by the electric force were used to accelerate a 1100-kg automobile from rest, what would be its final speed?
I'm thinking I would have to use the law of conservation of energy somehow, but I'm pretty lost.
Please help! I would appreciate it very much if you could show me the work clearly and include the final answer. Thanks!