Why friction is a necessary evil?
why are the bodies of birds streamlined
Explain why
(a) rollers are used for transporting luggage.
(b) metal chains are wrapped on tyres when they run on icy roads.
(c) aeroplanes and car bodies, are made more pointed along their fronts.
(d) talcum powder is put on a carrom-board before a game.
if you try to hold a glass with oil on your hands it tends to slip.why?
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?
Why friction is a necessary evil?
why are the bodies of birds streamlined
Explain why
(a) rollers are used for transporting luggage.
(b) metal chains are wrapped on tyres when they run on icy roads.
(c) aeroplanes and car bodies, are made more pointed along their fronts.
(d) talcum powder is put on a carrom-board before a game.
if you try to hold a glass with oil on your hands it tends to slip.why?
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?