Question

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Why Hill roads are built to have gradual slopes?​

Answer 1

Answer:

The roads on hills are gently sloping in order to reduce the effect of steepness which causes more downward gravitational pull on the vehicle. ... A steeper sloped road would slow the car down to a greater extent that an gently sloping one.

Explanation:

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Answer 2

Answer:

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The roads on hills are gently sloping in order to reduce the effect of steepness which causes more downward gravitational pull on the vehicle. ... A steeper sloped road would slow the car down to a greater extent that an gently sloping one.