# Calculating Push Time for a Moving Crate

• noob34
In summary, a crate initially at rest on a rough, horizontal floor is pushed resulting in a constant rate of 2.85 m/s2. After being pushed for a while, the crate slows down at a constant rate of 4.17 m/s2 and comes to rest 92.7 m away from its starting position. We are asked to find the amount of time the crate was pushed, rounding to 3 significant figures. Relevant equations and an attempt at a solution are not provided. Complete solutions are not given but help can be obtained.
noob34

## Homework Statement

A crate is initially at rest on a rough, horizontal floor. The crate moves in a straight line as it is pushed resulting in the crate speeding up at a constant rate of 2.85 m/s2. After a while, the crate is no longer being pushed and the crate slows down at a constant rate of 4.17 m/s2. The crate comes to rest a total distance 92.7 m away from its starting position. For how long (amount of time) was the crate pushed?
Round to 3 sig figs

You forgot part 2 (relevant equations) and 3 (your attempt at a solution).
You can get help here, but not complete solutions.

## 1. How do I calculate the push time for a moving crate?

To calculate the push time for a moving crate, you will need to know the mass of the crate, the force being applied to it, and the coefficient of friction between the crate and the surface it is moving on. Once you have this information, you can use the formula: time = (mass x distance) / (force x coefficient of friction).

## 2. What is the coefficient of friction and how does it affect push time?

The coefficient of friction is a measure of the resistance between two surfaces in contact. It represents how easily one surface can slide over another. A higher coefficient of friction means that it will take more force to move the crate, resulting in a longer push time.

## 3. Can I use the same formula for calculating push time on any surface?

No, the formula for calculating push time may vary depending on the surface the crate is being pushed on. For example, if the crate is being pushed on an incline, you will need to take into account the angle of the incline in the formula. It is important to adjust the formula accordingly for different surfaces.

## 4. Is there a maximum force that can be applied to the crate for efficient movement?

Yes, there is a maximum force that can be applied to the crate before it starts to slide or tip over. This maximum force will depend on the weight and shape of the crate, as well as the coefficient of friction of the surface it is on. It is important to not exceed this force to ensure safe and efficient movement of the crate.

## 5. Can I use this formula to calculate push time for objects other than crates?

Yes, the same formula can be used to calculate push time for any object as long as you have the necessary information, such as the mass, force, and coefficient of friction. This formula can be applied to a variety of scenarios, not just moving crates.

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