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3 years ago

A 38.5kg man is in an elevator accelerating downward. A normal force of 343n pushes up on him. what is his acceleration?

Physics

1 answer:

alexira [117]3 years ago

4 0

Answer:

<h3>The answer is 8.91 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

$a = \frac{f}{m} \\$

f is the force

m is the mass

From the question we have

$a = \frac{343}{38.5} = \frac{98}{11} \\ = 8.909090...$

We have the final answer as

Hope this helps you

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The stretching force acting on the second wire, given the data is 588 N

<h3>Data obtained from the question</h3>

Radius of fist wire (r₁) = 3.9×10⁻³ m
Force of first wire (F₁) = 450 N
Radius of second wire (r₂) = 5.1×10⁻³ m
Force of second wire (F₂) =?

<h3>How to determine the force of the second wire</h3>

F₁ / r₁ = F₂ / r₂

450 / 3.9×10⁻³ = F₂ / 5.1×10⁻³

cross multiply

3.9×10⁻³ × F₂ = 450 × 5.1×10⁻³

Divide both side by 3.9×10⁻³

F₂ = (450 × 5.1×10⁻³) / 3.9×10⁻³

F₂ = 588 N

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4 years ago

Two balls are dropped from rest and allowed to fall. If one ball is allowed to fall for 1 s and the other for 3 s compare the di

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The second ball traveled a greater distance when compared to the first ball because the second ball spent more time in motion.

The given parameters;

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Thus, the second ball traveled a greater distance because it spent more time in motion.

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