What happens to the current flow in a fully charged capacitor?
a) Current flow stops
b) Current flow doubles
c) Current flow becomes half
its original value d) Current flow becomes one-fourth its original value

Answer

A, B, D

Explanation

At point B (i.e. over 1.8 m from ground), the kid should be caught.
For kid: Initial velocity
`u=0`
Acceleration = 9.8 m/s^2
Distance S= 11.8-1.8=10 m
No S= ut+ 1/2 `at^2`
10=0+ 1/2 (9.8)`t^2`
` t^2`= 10/4.9=2.04
t= 1.42
`` In this time the man has to reach at the bottom of the building
`:. Velocity =S/t=7/1.42= 4.9 m/s`