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ICE Princess25 [194]

2 years ago

11

A person with a gravitational force of 750 N is sitting in the centre of a hammock which is strung between two trees. The ropes

supporting the hammock make an angle of 20.0 degrees to the level ground. What is the magnitude of the force on each rope?

1 answer:

bija089 [108]2 years ago

8 0

Answer:

Answer in photo

Explanation:

Answer in photo

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The diagram shows the apparent motion of the Sun across the sky. EAST WEST Sunrise Which action causes the Sun to appear to move

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C. West to east is the correct answer

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3 years ago

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A=(v – u)/t<br><br> i. V as subject<br> ii. U as subject<br> iii. T as subject

Norma-Jean [14]

Answer:

i.

$a = \frac{(v - u)}{t} \\ v - u = at \\ v = at + u$

ii.

$a = \frac{(v - u)}{t} \\ v - u = at \\ u = v - at$

iii.

$a = \frac{(v - u)}{t} \\ ta = v - u \\ t = \frac{(v - u)}{a}$

I hope I helped you^_^

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3 years ago

Hello, can you please help me with this problem?

dolphi86 [110]

Answer:

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2 years ago

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Multiple-Concept Example 6 reviews the concepts that play a role in this problem. A diver springs upward with an initial speed o

adell [148]

Answer:

Part a)

$v_f = 7.99 m/s$

Part b)

$y = 3.25 m$

Explanation:

Part a)

Since the diver is moving under gravity

so here its acceleration due to gravity will be uniform throughout the motion

so here we will have

$v_f^2 - v_i^2 = 2 a y$

here we have

$v_i = 2.22 m/s$

$y = -3 m$

$v_f^2 - (2.22)^2 = 2(-9.81)(-3)$

$v_f = 7.99 m/s$

Part b)

at highest point of his motion the final speed will be zero

so we will have

$v_f^2 - v_i^2 = 2 a (\Delta y)$

$0 - 2.22^2 = 2(-9.81)(y - 3)$

$y = 3.25 m$

7 0

3 years ago