If the average speed of a car is 45 km/hr, how far can it travel in 40 min?
falling objects drop with an average acceleration of 9.8 m/s2
if an object falls from a tall building, how long will it take before it reaches a speed of 49 m/s?
what is meant by a freely falling object?

Scientist have use computer models to create a series of maps that show how susceptible coastal cities in island countries are to the sea rising at different levels.the map shows that a 1 meter rise would swap cities all along the us eastern seaboard. a 6-meter sea level rise with sub merge a large part of florida. thermal expansion has already raise the oceans 10 to 20 centimeters the most likely cause,directly and indirectly, for such a rise in sea level is