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Chapter 2: Q2. (page 43)

What must your car鈥檚 average speed be in order to travel 235 km in 2.75 h?

Short Answer

Expert verified

The average speed of the car must be 85.45kmh.

Step by step solution

01

Step 1. Relation between the average speed with distance and time

The term 鈥榮peed鈥� can be defined as the rate of change of the position of an object with respect to time. The speed of an object is calculated by dividing the distance covered by an object by the time taken to cover that distance.

Given data.

The traveled distance is 螖x=235km.

The time for the trip is localid="1642740006851" 螖t=2.75h.

Rule.

The average speed, localid="1642739823981" v=螖x螖t.

02

Step 2. Finding the value of the average speed

Now, the average speed is

v=235km2.75h=85.45kmh

Therefore, the average speed of the car must be 85.45kmh.

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