Tortoise moved when they meet
A rabbit moves at 7 m/s and a tortoise at 0.05 m/s. They are 90 m apart when they start to move towards each other. How far has the tortoise moved when they meet.
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A slow train travelling at 25 km/h leaves station 1/2 h before another train travelling at 40 km/h. If the trains travel in the same direction on parallel routes, when does the faster train pass the slower train? What would x represent and what w
A family drives at average rate of 60mi/h on the way to visit relatives and then at an average rate 40mi/h on the way back. The return trip takes 1h longer than the trip there.
Find the derivative of the following functions:
The maximum patent life for new drug is 17 years. Subtracting length of time needed by the FDA for testing and approval of the drug provides the actual patent life of the drug-that is, the length of time that a company has to recover research and
Job offers for a college graduate arrive according to Poisson process with mean 2 per month. A job offer is acceptable if the wages are at least $32,000.
A mass weighing 4 pounds is attached to the spring whose spring constant is 25 lb/ft. Determine the period of simple harmonic motion?
A uniform rod AB, of mass 0·3 kg and length 2·0 m, with three particles, of masses 0·2 kg, 0·4 kg and 0·5 kg, attached to points A, C and B respectively, where AC = 0·6 m. When the rod is suspended by strin
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