Speed Conversion: m/s and km/h

What is the formula to convert metres per second (m/s) to kilometres per hour (km/h)?

• Multiply by 3.6

• Divide by 3.6

• Multiply by 1.6

• Divide by 1.6

Answer explanation

To convert metres per second (m/s) to kilometres per hour (km/h), you multiply by 3.6. This is because 1 m/s is equal to 3.6 km/h, making this the correct conversion factor.

If a car is travelling at 20 m/s, what is its speed in km/h?

• 36 km/h

• 54 km/h

• 72 km/h

• 90 km/h

Answer explanation

To convert m/s to km/h, multiply by 3.6. Thus, 20 m/s * 3.6 = 72 km/h. Therefore, the correct answer is 72 km/h.

Convert 90 km/h to m/s.

• 15 m/s

• 20 m/s

• 25 m/s

• 30 m/s

Answer explanation

To convert km/h to m/s, divide by 3.6. Thus, 90 km/h ÷ 3.6 = 25 m/s. Therefore, the correct answer is 25 m/s.

A cyclist travels at a speed of 10 m/s. What is this speed in km/h?

• 18 km/h

• 28 km/h

• 36 km/h

• 46 km/h

Answer explanation

To convert m/s to km/h, multiply by 3.6. Thus, 10 m/s * 3.6 = 36 km/h. Therefore, the cyclist's speed is 36 km/h.

Which of the following is equivalent to 108 km/h in m/s?

• 25 m/s

• 30 m/s

• 35 m/s

• 40 m/s

Answer explanation

To convert km/h to m/s, divide by 3.6. Thus, 108 km/h ÷ 3.6 = 30 m/s. Therefore, the correct answer is 30 m/s.

A runner completes a race at a speed of 5 m/s. What is this speed in km/h?

• 12 km/h

• 15 km/h

• 18 km/h

• 20 km/h

Answer explanation

To convert 5 m/s to km/h, multiply by 3.6 (1 m/s = 3.6 km/h). Thus, 5 m/s * 3.6 = 18 km/h. Therefore, the correct answer is 18 km/h.

Convert 50 km/h to m/s.

• 12.5 m/s

• 13.9 m/s

• 14.5 m/s

• 15.2 m/s

Answer explanation

To convert km/h to m/s, divide by 3.6. Thus, 50 km/h ÷ 3.6 = 13.89 m/s, which rounds to 13.9 m/s. Therefore, the correct answer is 13.9 m/s.

A train moves at a speed of 25 m/s. What is this speed in km/h?

• 75 km/h

• 80 km/h

• 85 km/h

• 90 km/h

Answer explanation

To convert m/s to km/h, multiply by 3.6. Thus, 25 m/s * 3.6 = 90 km/h. Therefore, the correct answer is 90 km/h.

If a vehicle is travelling at 144 km/h, what is its speed in m/s?

• 36 m/s

• 40 m/s

• 44 m/s

• 48 m/s

Answer explanation

To convert km/h to m/s, divide by 3.6. Thus, 144 km/h ÷ 3.6 = 40 m/s. Therefore, the correct answer is 40 m/s.

Convert 15 m/s to km/h.

• 45 km/h

• 50 km/h

• 54 km/h

• 60 km/h

Answer explanation

To convert m/s to km/h, multiply by 3.6. Thus, 15 m/s * 3.6 = 54 km/h. Therefore, the correct answer is 54 km/h.