Equation
KE. + PE. = KE<em>f </em>+ PE<em>f</em>
<em>By the time the Rocket reaches an infinete distance the </em><em>KE</em><em>f and </em><em>PE</em><em>f power would be down to zero so then the equation will become </em><em>KE. + PE. = 0 </em>
<em>Cant explain much because dont know if this anserw recwires any speical things to solve it</em>
The unit vectors along the three co-ordinate axes are described as. i > j > k > 1. is D. i = j = k = 1
<h3> </h3><h3>What is the unit vector along the vector?</h3>
A vector that has a volume of 1 is a unit vector. It is also known as a direction vector because it is generally used to denote the direction of a vector. The vectors i, j, k, stand the unit vectors along the x-axis, y-axis, and z-axis respectively.
<h3>What is the unit vector along y-axis?</h3>
There are three essential unit vectors which are commonly employed and these are the vectors in the direction of the x, y and z-axes. The unit vector in the direction of the x-axis is i, the unit vector in the direction of the y-axis is j and the unit vector in the demand of the z-axis is k.
To learn more about unit vectors, refer
brainly.com/question/2094736
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Complete Question
The complete question is shown on the first uploaded image
Answer:
a
b
c
Explanation:
From the question we are told that
The mass of the coal car is
The velocity is
The load of coal dropped is
Generally the momentum of the system before the coal is added is mathematically represented as
=>
=>
Generally from the law of momentum conservation is mathematically represented as
Here is the velocity of the load before it is dropped and the value is 0 m/s
So
=>
=>
When v = 1m/s and remain the same
Then
=>
=>
=>
Answer:
F = 35651 [N]
Explanation:
To solve this problem we must use the following equation of kinematics
where:
Vf = final velocity = 185 [m/s]
Vo = initial velocity = 0 (starts from the rest)
a = acceleration [m/s²]
x = distance = 3.6 [m]
Now we can find the acceleration.
185² = 0 + 2*a*3.6
34225 = 7.2*a
a = 4753.47 [m/s²]
Now we must use Newton's second law which tells us that the total force on a body is equal to the product of mass by acceleration.
F = m*a
where:
m = mass = 7.5 [kg]
F = force [N] (units of Newtons)
F = 7.5*4753.47
F = 35651 [N]
to increase the period of a mass-spring oscillator, Increase the...... mass