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4 years ago

2. Explain whether the size of an object's displacement could be greater than the distance the

1 answer:

4 0

Answer:learn vocabulary, terms,and more with flashcards, games,and other study tools.size of an objects displacement could be greater than the distance the object travels.

Explanation:

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A 72 kg swimmer dives horizontally off a raft floating in a lake. The diver's speed immediately after leaving the raft is 3.8 m/

juin [17]

Answer:

F = 1094.4 N

Explanation:

From impulse - momentum theorem, we now that ;

Impulse = momentum

Where;

Formula for impulse = force (F) × time(t)

Momentum = mass(m) × velocity(v)

Now, we are given;

Mass of swimmer; m = 72 kg

Speed; v = 3.8 m/s

Time; t = 0.25 s

Thus;

F × t = mv

F = mv/t

F = (72 × 3.8)/0.25

F = 1094.4 N

This value of force is the magnitude of the average horizontal force by diver on the raft.

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3 years ago

1. The workpart in a turning operation is 88 min in diameter and 400 mm long. A feed of 0.25 mm/rev is used in this operation. I

Vedmedyk [2.9K]

Find the given attachments

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4 years ago

1.2

Alika [10]

Answer:

Explanation:

Because it has to increase

3 0

3 years ago

Read 2 more answers

2 kids are running down the hall at 2 m/s, one is 40kg and the other is 50kg (p=ma)

Georgia [21]

The net force acting on the two (2) kids is equal to 180 Newton.

<u>Given the following data:</u>

Mass of kid 1 = 40 kilogram.

Mass of kid 2 = 50 kilogram.

Acceleration = 2 $m/s^2$

To determine the net force acting on the two (2) kids:

First of all, we would calculate the total mass of the two (2) kids:

$Total\;mass = 50+40$

Total mass = 90 kg.

<h3>How to calculate net force.</h3>

In this exercise, you're required to calculate the magnitude of the net force that is acting on these two (2) kids running down the hall. Thus, we would apply Newton's Second Law of Motion.

Mathematically, Newton's Second Law of Motion is given by this formula;

$Net\;force = mass \times acceleration$