FORCE AND LAWS OF MOTION

Activity  1
• Set a five-rupee coin on a stiff playing
card covering an empty glass tumbler
standing on a table 
• Give the card a sharp horizontal flick
with a finger. If we do it fast then the
card shoots away, allowing the coin to
fall vertically into the glass tumbler due
to its inertia.
• The inertia of the coin tries to maintain
its state of rest even when the card
flows off.

note your observations 

Activity 2
• Place a water-filled tumbler on a tray.
• Hold the tray and turn around as fast
as you can.
• We observe that the water spills. Why?