Railway tracks are laid on large sized wooden sleepers.give reason

Physics

2 answers:

vampirchik [111]3 years ago

6 0

Answer:

rgndorgnodgkdjgkj

Explanation:

vredina [299]3 years ago

5 0

Train tracks use electricity and wood is both safe and a perfect foundation to start the process of building tracks

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An object is moving in a straight line at constant speed. A resultant torce begins to act upon

alekssr [168]

Answer: The velocity magnitude or the velocity direction chages.

Explanation:

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3 years ago

A ball is thrown vertically upwards with a velocity

zhuklara [117]

Answer:

Explanation:

The acceleration of gravity is 9.8m/s^2.

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(You can ignore the fact "at" is -30 instead 30, it's because the directions two velocity travel are opposite. )

We can now know the time it takes to make the ball stop just by the gravitational force is about 3 sec.

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Sladkaya [172]

Answer:

0.767

Explanation:

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$W=-Fd$