Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 12 - Equilibrium and Elasticity - Problems - Page 345: 2a

Answer

The force from the ground on each front wheel is $~~2775~N$

Work Step by Step

Let the rotation axis be at the position of the rear wheels. Let $F_f$ be the force from the ground on each front wheel. We can use a torque equation to find the force from the ground on each front wheel: $\tau_{net} = 0$ $(2)(3.05~m)(F_f)-(1.27~m)(1360~kg)(9.8~m/s^2) = 0$ $F_f = \frac{(1.27~m)(1360~kg)(9.8~m/s^2)}{(2)(3.05~m)}$ $F_f = 2775~N$ The force from the ground on each front wheel is $~~2775~N$
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