A car traveling 80km/h is 120m behind a truck traveling 66km/h. How long will it take the car to reach the truck?
Two ants race across a table 57 cm long. One travels 4.14 cm/s and the other 3cm/s. when the first crosses the line, how far behind is the second one? Answer in cm.
the car is traveling 14km/hr faster than the truck
14km/hr * 1000m/km * 1hr/3600sec = 35/9 m/s
120m / 35/9m/s = 30.86 sec
To find the time it will take for the car to reach the truck, we need to determine how long it takes for the car to cover 120 meters while traveling at a speed of 80 km/h.
First, we need to convert the speed of the car from km/h to m/s, as the distance is given in meters. To do this, we divide the speed of the car by 3.6 (since 1 km/h is equal to 1/3.6 m/s).
80 km/h ÷ 3.6 = 22.22 m/s (rounded to two decimal places)
Now that we have the speed of the car in meters per second, we can calculate the time it will take for the car to cover a distance of 120 meters using the formula:
Time = Distance ÷ Speed
Time = 120 m ÷ 22.22 m/s
Time ≈ 5.4 seconds (rounded to one decimal place)
Therefore, it will take approximately 5.4 seconds for the car to reach the truck.