Convert each of the following speeds into m/sec :
16.2km/hr

Answer

To convert the speed of 16.2 km/hr into m/sec, we can follow these steps:

### Step 1: Understand the Conversion Factors
We need to know the conversion factors:
- 1 kilometer = 1000 meters
- 1 hour = 3600 seconds (since 1 hour = 60 minutes and 1 minute = 60 seconds, thus 60 * 60 = 3600 seconds)

### Step 2: Set Up the Conversion
We start with the speed in kilometers per hour:
\[ 16.2 \text{ km/hr} \]
We can express this as:
\[ 16.2 \text{ km/hr} = 16.2 \times \frac{1000 \text{ meters}}{1 \text{ km}} \times \frac{1 \text{ hr}}{3600 \text{ seconds}} \]

### Step 3: Substitute the Values
Now we substitute the values:
\[ = 16.2 \times \frac{1000}{3600} \]

### Step 4: Simplify the Expression
We can simplify the fraction:
\[ \frac{1000}{3600} = \frac{10}{36} = \frac{1}{3.6} \]
Thus, we have:
\[ = 16.2 \times \frac{1}{3.6} \]

### Step 5: Calculate the Result
Now we calculate:
\[ = \frac{16.2}{3.6} \]
Performing the division:
\[ = 4.5 \]

### Final Answer
Thus, the speed of 16.2 km/hr is equal to:
\[ 4.5 \text{ m/sec} \]

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