13 Explain why: (a) a pencil will write on paper but not on glass (b) The handles of motor cycle are covered with a rubber sheet with spikes.(c) The soles of our shoes wear out gradually. (d) Tyres of car wear out gradually.
Answers
Answered by
3
a) the friction allows the carbon lead t work on paper
b)Rubber sheet with spikes provide extra friction to handle it better
c) The rough floor increases the friction with the sole of shoe and thus cause the wearing out of the shoe
d) the threading on the tires are made to get a better grip on the road. by time these wear out cause of the friction between the tyre and road.
b)Rubber sheet with spikes provide extra friction to handle it better
c) The rough floor increases the friction with the sole of shoe and thus cause the wearing out of the shoe
d) the threading on the tires are made to get a better grip on the road. by time these wear out cause of the friction between the tyre and road.
Similar questions