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Gennadij [26K]
3 years ago
5

Determine which of the following moving objects obey the equations of projectile motion developed in this topic. A ball is throw

n in an arbitrary direction. A jet airplane crosses the sky with its engines thrusting the plane forward. A rocket leaves the launch pad. A rocket moves through the sky after its engines have failed. A stone is thrown under water.
Physics
1 answer:
Morgarella [4.7K]3 years ago
5 0

Answer:

A ball is thrown in an arbitrary direction and a rocket moves through the sky after its engines have failed.

Explanation:

The concept applied is that of projectile motion which is the free fall for both then horizontal and vertical component of a constant velocity. it is also the motion of an object thrown under the influence of acceleration due to gravity.

The correct option are as follows ; A ball is thrown in an arbitrary direction and a rocket moves through the sky after its engines have failed.

For the first case ; A ball is thrown in an arbitrary direction ; after the ball must have been thrown, the projectile further moves in a curved path.

for the second case ; A rocket moves through the sky after its engines have failed ; the rocket also moves in a curved path under the influence of the acceleration due to gravity.

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You have a rod with a length of 146.4 cm. You prop up one end on a brick which is 3.8 cm thick. Your uncertainty in measuring th
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Answer:

\partial \theta = 0.003

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\theta = 1.484° *\frac{\pi}{180} = 0.0259 radians

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relative error\frac{\partial \theta}{\theta} = \frac{\partial X}{X_1} +\frac{\partial X}{X_2}

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X_2 IS THE HEIGHT OF ROAD

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Putting all value to get uncertainity in angle

\frac{\partial \theta}{0.0259} = \frac{0.05}{3.8} +\frac{0.05}{146.4}

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\partial \theta = 0.003

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