Question

Name two ways in which friction is harmful and two ways in which friction is helpful when riding a bicycle.

Answer 1

Answer:

it is harmful because :

1) the sole of shoes can be destroyed.

2) it causes the damage to machines.

It is helpful while riding the cycle:

friction helps us to stop our cycle when we need.

Answer 2

Explanation:

HARMFUL

cause heat; if not used properly it can cause injury when you fall

friction while riding a bicycle is bad because if your tyres keep rubbing ( friction) it would slow you down or even cause puncture.

HELPFUL

it is helpful as it helps the bike move forward

keeps the braks working.

hope it helps you...

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