Question

An object is travelling at a speed of 6500. cm per second. Convert the value to the following units (2.54 cm = 1 inch)

a. Kilometers per minute
b. Feet per hour

Answer 1

3.900 km/min

7.677 × 10⁵ ft/h

Step-by-step explanation:

Step 1: Given data

Speed of the object (s): 6500. cm/s

Step 2: Convert "s" to km/min

We will use the following conversion factors.

• 1 km = 10⁵ cm

• 1 min = 60 s

6500. cm/s × (1 km/10⁵ cm) × (60 s/1 min) = 3.900 km/min

Step 3: Convert "s" to ft/h

We will use the following conversion factors.

• 1 km = 3280.84 ft

• 1 h = 60 min

3.900 km/min × (3280.84 ft/1 km) × (60 min/1 h) = 7.677 × 10⁵ ft/h