3 years ago

Can’t someone help me

Physics

1 answer:

Aleonysh [2.5K]3 years ago

3 0

Answer:

Explanation:

Objects with the same charge (Ex. North and north) repel each other.

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koban [17]

Answer:

True

Explanation:

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A ball with a weight of 2 N is attached to the end of a cord of length 2m . The ball is whirl in a vertical circle counterclockw

ZanzabumX [31]

Answer:

we agree with

Edgar: The net force on the ball at the top position is 9 N. Both the tension and the weight are acting downward so you have to add them.

Explanation:

Weight of the ball is given as

$W = 2N$

so we have

$m = \frac{W}{g}$

$m = 0.204 kg$

now tension force at the top is given as

$T_{top} = 7 N$

$T_{bottom} = 15 N$

Now at the top position by force equation we can say that ball will have two downwards forces

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2) Weight of the ball

so net force on the ball is given as

$F_{net} = T + W$

$F_{net} = 7 + 2 = 9 N$

So we agree with

Edgar: The net force on the ball at the top position is 9 N. Both the tension and the weight are acting downward so you have to add them.

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3 years ago

Why in a rollercoaster the height of the tracks is either equal to or less than the first track

umka2103 [35]

Answer:

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