## Essential University Physics: Volume 1 (4th Edition)

Published by Pearson

# Chapter 4 - Exercises and Problems - Page 71: 48

#### Answer

Please see the work below.

#### Work Step by Step

(a) We know that $a=\frac{v}{\Delta t}$ Hence, the force is given as $F=ma=\frac{mv}{\Delta t}$ (b) We know that the acceleration is given as $a=\frac{v^2}{2\Delta x}$ Hence, the force is given as $F=ma=\frac{mv^2}{2\Delta x}$

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