During the construction of a high-rise building, a worker accidentally dropped his portable electric screwdriver from a height of 576 ft. After t sec, the screwdriver had fallen a distance ofs = 16t2 ft. How long did it take the screwdriver to reach the ground? What was the average velocity of the screwdriver between the time it was dropped and the time it hit the ground?What was the velocity of the screwdriver at the time it hit the ground?

a jet fighter landed on the deck of an aircraft carrier and was not touched the earth moved at a speed of 70.4 m/s and stopped completely after a distance of 197.4 m. if this process occurs with a constant slowdown. what is the speed of the jet before it stops? the final distance is 44.2m?

A 30-second commercial during Super Bowl XXXVII in 2003 cost advertisers 2.2 million. For the first Super Bowl in 1967, an advertiser could have purchased approximately 26.19 minutes of advertising time for the same amount of money. (a) Assuming that advertising cost is proportional to its length of time, find the cost of advertising, in dollars/second, during the 2003 Super Bowl. cost= dollars/second. (round to nearest cent and do not enter commas) (b) Assuming that advertising cost is proportional to its length of time, find the cost of advertising, in dollars/second, during the 1967 Super Bowl. cost = dollars/second. (round to nearest cent and do not enter commas) (c) How many times more expensive was Super Bowl advertising in 2003 than in 1967? times more expensive (round to nearest whole number)