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Chapter 7: Q. 15 (page 177)

Two-thirds of the weight of a 1500kg car rests on the drive wheels. What is the maximum acceleration of this car on a concrete surface?

Short Answer

Expert verified

The maximum acceleration of this car on a concrete surface is6.53m/s2.

Step by step solution

01

Given information

Two-thirds of the weight of a 1500kg car rests on the drive wheels.

02

Calculation

Mass of the car =m1=1500kg

Mass of the part of car on drive wheels =m=2脳15003=1000kg

Frictional force F will provide force for the movement of car .

Formulae used :

F=渭km1g鈬�F=ma=渭km1g鈬�a=渭km1gm鈥�(1)

For concrete ground, 渭k=1鈥�(2)

Substituting data in equation (2) and equation (1) we get,

localid="1649266075962" 鈬�a=1(1000kg)(9.8m/s2)(1500kg)鈬�a=6.53m/s2

03

Final answer

The maximum acceleration of this car on a concrete surface is6.53m/s2.

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