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ivolga24 [154]
2 years ago
5

An AP Physics student is attempting an FRQ problem. They arrive at the following expression for the total distance an object has

traveled:
d = 2vh/g


All you know about the variables in this problem are their dimensions:

[v] = distance/time, [h] = distance, and [g] = distance/time^2.

Given this information, explain why the student’s answer must be wrong.

Physics
1 answer:
zysi [14]2 years ago
7 0

The student's answer is wrong because the unit of his answer is meter - seconds which is not unit of distance (meter).

<h3>Total distance traveled by an object</h3>

The total distance traveled by an object projected upward is calculated from third equation of motion a shown below.

<h3>Equation for the motion of the object</h3>

v² = u² - 2gh

where;

  • v is final velocity
  • u is initial velocity
  • g is acceleration due to gravity

at maximum height, the final velocity is zero, v = 0

0 = u² - 2gh

2gh = u²

h = u²/2g

The equation for the total distance an object has traveled during upward projection is "h = u²/2g".

<h3>Dimension of the student's answer;</h3>

d = (2vh)/g = (m/s x m) / (m/s²)  = (m²/s) / (m/s²) = m.s

Thus, the student's answer is wrong because the unit of his answer is meter - seconds which is not unit of distance (meter).

Learn more about distance here: brainly.com/question/2854969

#SPJ1

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