1 newton is the force that accelerates
1 kilogram of mass at the rate of 1 m/s² .
So in SI base units, 1 newton = 1 kg-m/s² .
and 3 kg-m/s² = 3 newtons .
Answer:
Its angular speed is 0.105 rad /s. The minute hand of a clock takes 60 minutes = 60 x 60 seconds to complete one rotation.
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Explanation:
An inclined plane would not be practical because he would still have to push it and the amount of effort and energy would increase. A lever would not be practical because he would have to use his weight to make the bale rise 15 feet. He would also need to make sure that he has a 15 foot ladder in the first place. A screw would not be practical because he would have to drill a hole through the medium and use rotation.
A
pulley would be the most practical way of moving the cotton bale. A
pulley supports movement and will help the farmer move the bale.
The correct answer is a. A mineral or combination of minerals that contains metals or other substances in usable amounts is called an ore. An ore is basically a rock that contains minerals that have important elements including metals.