**Answer:**

Could you please organize your question more?

You should google that itll help

7/18! This is because if you double both the top and bottom of 8/9 you get 16/18. Half of 18 is 9. So if we use half a yard, 9/18, and we subtract it from 16/18, we get 7/18!

Sin 64= .898

sin 50= .766

sin 60= .913

(15)(.898)=13.47

The magnitude of the** final velocity **of the cue ball is (B) 0.56m/s.

<h3>

**What is Velocity**</h3>

- The definition of
**velocity **is a** vector measurement** of the rate and direction of motion. - It is a moving body's speed and direction of
**motion**.

How to calculate the **magnitude **of the** final velocity**?

The magnitude of the final velocity can be calculated by following the steps:

- The mass of the cue ball given is 0.4kg.
- The velocity of the cue ball given is +0.80m/s.
- The velocity of the striped ball before the collision is +0.38 m/s.
- The velocity of the striped ball after collision is +0.62m/s.
- We need to find the magnitude of the final velocity of the cue ball.

Assuming all pool balls have the same mass: 0.4kg

Let the final velocity of the cue ball be x.

Now, To find th**e final velocity:**

- Mass of the cue ball × initial velocity of cue ball + Mass of striped ball + initial velocity of striped ball = mass of cue ball × final velocity + mass of striped ball × final velocity of the striped ball

- (0.40)×(0.80)+(0.4)(0.38) = (0.4)(x)+(0.4)(0.62)
- 0.32+0.152=0.4x+0.248
- 0.472=0.4x+0.248
- 0.472-0.248= 0.4x
- 0.224/0.4 =x
- x = 0.56m/s

Therefore, the **magnitude **of the** final velocity** of the cue ball is (B) 0.56m/s.

Know more about **velocity **here:

**brainly.com/question/25749514**

#SPJ4

**The correct question is given below:**

In a game of pool, a 0.4 kg cue ball is traveling at +0.80 m/s when it hits a slower striped ball moving at +0.38 m/s. After the collision, the striped ball moves off at +0.62 m/s. What is the magnitude of the final velocity of the cue ball? Assume all pool balls have the same mass.

A. 0.20 m/s

B. 0.56 m/s

C. 1.0 m/s

D. 1.8 m/s