# Speed: Mass and Space Shuttle Endeavor

How long will your trip take (in hours) if you travel 350 km at an average speed of 80 km/hr?

How many seconds will it take for a satellite to travel 450 km at a rate of 120 m/s?

1. d=vt (distance = velocity multiplied by time)

d=9000 m

t=12.12 sec.

solving for v, v=d/t,

v=742.57 m/sec.

2. d=vt

d=528 m

t=4 sec

solving for v, v=d/t,

v=132 m/sec.

3. d=vt

v=96 m/sec.

t=17 sec.

d=1632 m

4. d=vt

d=500,000 m

v=700 m/sec.

solving for t, t=d/v,

t=714.3 sec.(11.9 min.)

5. d=vt

d=350,000 m

v=80,000 m/hr.

solving for t, t=d/v

t=4.375 hrs.

6. d=vt

d=450,000 m

v=120 m/sec

solving for t, t=d/v,

t=3750 sec.

Problem 1

An African elephant can reach heights of 13 feet and possess a mass of as much as 6000 kg. Determine the weight of an African elephant in Newtons and in pounds. (Given: 1.00 N = .225 pounds) 58800 N or 13230 lb

Problem 2

About twenty percent of the National Football League weighs more than 300 pounds. At this weight, their Body Mass Index (BMI) places them at Grade 2 obesity, which is one step below morbid obesity. Determine the mass of a 300 pound (1330 N) football player. 136 kg

Problem 3

With fuel prices for...

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