   Chapter 2, Problem 23P

Chapter
Section
Textbook Problem

A certain car is capable of accelerating at a rate of 0.60 m/s2. How long does it take for this car to go from a speed of 55 mi/h to a speed of 60 mi/h?

To determine
The time required for the car to reach the final velocity.

Explanation

Given info:

The initial velocity of the car is 55mi/h .

The final velocity of the car is 60mi/h .

The acceleration of the car is 0.60m/s2 .

Explanation:

Formula to calculate time is,

Δt=vfvia

• a is the acceleration of the car
• vf is the final velocity of the car
• vi is the initial velocity of the car
• Δt is the time interval

Substitute 60mi/h for vf , 55mi/h for vi and 0.60m/s2 for a to find Δt

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