A coin is placed on a cardboard card that covers the mouth of a vertical glass
PHYSICS · Single correct · CBSE · Physics · Force and Laws of Motion · Force and Laws of Motion
Problem
A coin is placed on a cardboard card that covers the mouth of a vertical glass. The card is pulled horizontally and briskly with a sharp finger flick. What is most likely to be observed?
(a) The coin moves with the card for a short distance and then falls beside the glass.
(b) The coin drops straight down into the glass while the card flies off.
(c) Both the coin and card slide together off the mouth of the glass.
(d) The coin momentarily hops upward when the card is flicked, then lands outside the glass.