Question

A short magnet is allowed to fall along the axis of a horizontal metallic ring. Starting from rest, the distance fallen by the magnet in one second may be

• A. 4 m
• B. 5 m
• C. 6 m
• D. 7 m

Answer 1

The correct option is B 5 m

We know in this case acceleration of falling magnet will be lesser than g.

if g would have been acceleration, than distance covered = $\frac{1}{2}g{t}^2=5m$

Now the distance covered will be less than 5 m.