1. James drives 400 km in 5 hours to his grandmothers. What are the units for speed going to be? 2. James drives 400 km in 5 hours to his grandmothers. What is the distance he will travel?

3. James drives 400 km in 5 hours to his grandmothers. What is the time it takes to get there?

See the answer below

Explanation:

1. Speed is calculated as the ratio of distance and time. Hence, Jame's speed can be calculated as:

       400/5 km/hr = 80 km/hr

The unit for the speed would be km/hr. This can also be converted to m/s:

80 km = 80,000 m

1 hr = 3,600 s

80 km/hr = 80,000/3600 m/s = 22.22 m/s

2. Since James drove 400 km in 5 hours, the distance he drove is 400 km.

3. The time it took for James to get there is 5 hours.

force tends to be low and long diustance masses are high