---
title: "The heaviest train ever pulled by a single engine was over 2 km long. A force of 1.13 × 10^5 N is needed to overcome static friction in the train’s wheels. If the coefficient of static friction is 0.741, what is the train’s mass?"
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date_modified: "2024-05-05T02:58:33+00:00"
---

# The heaviest train ever pulled by a single engine was over 2 km long. A force of 1.13 × 10^5 N is needed to overcome static friction in the train’s wheels. If the coefficient of static friction is 0.741, what is the train’s mass?

The heaviest train ever pulled by a single engine was over \( 2 \, \text{km} \) long. A force of \( 1.13 \times 10^5  \, \text{N} \) is needed to get the train to start moving. If the coefficient of static friction is \( 0.741 \) and the coefficient of kinetic friction is \( .592 \), what is the train’s mass?

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/23199/*