A plane flying horizontally above earth’s surface at 100. Meters per second drops a crate. The crate strikes the ground 30. 0 se
1 answer:
The magnitude of the horizontal component of the crate’s velocity just before it strikes the ground is 100 meters per seconds.
<u>Given the following data:</u>
- Velocity = 100 m/s
- Time = 30.0 seconds.
To determine the magnitude of the horizontal component of the crate’s velocity just before it strikes the ground:
<h3>The horizontal component of velocity.</h3>In Projectile motion, the horizontal component of the velocity represents the influence of velocity in displacing an object (projectile) in the horizontal direction.
Mathematically, the horizontal component of velocity is given by the formula:
In this scenario, there isn't any acceleration in the horizontal direction and as such the net force in this horizontal direction is equal to zero (0) in accordance with Newton's Second Law of Motion.
In conclusion, the plane would experience a constant velocity of 100 m/s.
Read more on horizontal component here: brainly.com/question/4080400
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Complete question;
<em>The distribution of lengths of salmon from a certain river is approximately normal with a standard deviation of 3.5 inches. If 10 percent of salmon are longer than 30 inches, which of the following is closest to the mean of the distribution? 26 inches A 28 inches B 30 inches C 33 inches D 34 inches</em>
Option B is correct. The value that is closest to the mean of the distribution is 30inches.
The formula for calculating the z-score is expressed as:
Given the following parameters
If 10 percent of salmon are longer than 30 inches, then:
- P(x>30) = 0.1
Using the z table to get the value corresponding to the mean area 0.1.
- The required z-score will be -1.285
Substitute the resulting parameters into the formula to get the mean of the distribution.
Hence the value that is closest to the mean of the distribution is 30inches.
Learn more here: brainly.com/question/15295437