Physics
The angle in which a cricket ball should be hit to travel maximum horizontal distance is :

60° with horizontal
45° with horizontal
30° with horizontal
15° with horizontal

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Physics
It is more difficult to walk on a sandy road than on a concrete road because

the friction between sand and feet is more than that between concrete and feet.
the friction between sand and feet is less than that between concrete and feet.
sand is soft and concreter is hard.
the sand is grainy but concrete is smooth.

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