Question

As Mercury revolves around the sun, it travels at a rate of approximately 30 miles per second. Convert this rate to kilometers per second. At this rate, how

many kilometers will Mercury travel in 20 seconds? In your computations, assume that 1 mile is equal to 1.6 kilometers. Do not round your answers.

Answer 1

Try this option:

1) if 1 mile=1.6 km, then for 30 [mil/sec]=30*1.6 [km/sec]=48 [km/sec];

2) if time is 20 sec., then the distance is:

48*20=960 [km].

Answer: 48 km/s; 960 km.