Lightning occurs when there is a flow of electric charge (principally electrons) between the ground and a thundercloud. the maximum rate of charge flow in a lightning bolt is about 20,000c/s; this lasts for 100μs or less. how much charge flows between the ground and the cloud in this time?

2C  charge will flow from ground and cloud

Explanation:

We have given rate rate of flow of charge

Time is given as

WE have to find the how much charge flows between the ground and cloud in this time

So the charge flow is given by

So 2C  charge will flow from ground and cloud

what is the question because that is not a question.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft