Two cars start from the same point and travel in opposite directions. If car A travels at 70 km/h and car B at 50 km/h, how far apart will they be after 2 hours?
Practice Questions
1 question
Q1
Two cars start from the same point and travel in opposite directions. If car A travels at 70 km/h and car B at 50 km/h, how far apart will they be after 2 hours?
240 km
220 km
200 km
180 km
Relative speed = 70 + 50 = 120 km/h. Distance apart after 2 hours = 120 * 2 = 240 km.
Questions & Step-by-step Solutions
1 item
Q
Q: Two cars start from the same point and travel in opposite directions. If car A travels at 70 km/h and car B at 50 km/h, how far apart will they be after 2 hours?
Solution: Relative speed = 70 + 50 = 120 km/h. Distance apart after 2 hours = 120 * 2 = 240 km.
Steps: 5
Step 1: Identify the speed of car A, which is 70 km/h.
Step 2: Identify the speed of car B, which is 50 km/h.
Step 3: Since the cars are traveling in opposite directions, add their speeds together to find the relative speed: 70 km/h + 50 km/h = 120 km/h.
Step 4: Determine the time they have been traveling, which is 2 hours.
Step 5: Calculate the distance apart after 2 hours by multiplying the relative speed by the time: 120 km/h * 2 hours = 240 km.
