A car travels at a speed of 80 km/h and a bike travels at 60 km/h. If they start
Practice Questions
Q1
A car travels at a speed of 80 km/h and a bike travels at 60 km/h. If they start from the same point and travel in the same direction, how far apart will they be after 1 hour?
20 km
10 km
30 km
40 km
Questions & Step-by-Step Solutions
A car travels at a speed of 80 km/h and a bike travels at 60 km/h. If they start from the same point and travel in the same direction, how far apart will they be after 1 hour?
Step 1: Identify the speed of the car, which is 80 km/h.
Step 2: Identify the speed of the bike, which is 60 km/h.
Step 3: Calculate the difference in speed between the car and the bike. This is done by subtracting the bike's speed from the car's speed: 80 km/h - 60 km/h.
Step 4: The result of the subtraction gives us the relative speed, which is 20 km/h.
Step 5: Since they are traveling for 1 hour, we need to find out how far apart they will be after that time. We use the relative speed for this calculation.
Step 6: Multiply the relative speed (20 km/h) by the time (1 hour): 20 km/h * 1 hour = 20 km.
Step 7: Therefore, after 1 hour, the car and the bike will be 20 km apart.
Relative Speed – The speed of one object as observed from another object, calculated by subtracting their speeds when moving in the same direction.
Distance Calculation – The formula for distance is speed multiplied by time, which is used to determine how far apart two objects will be after a certain time.
