You travel from point A to point B and back again. You travel back and forth using the identical path. Your average speed going from A to B is v1 and your average speed from B to A is v2. In term of v1 and v2 only, what is your average speed for the entire trip back and forth?
Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase your speed by 4.0 mi/h, the time to go one mile decreases by 12 s. What was your original speed?
....... mi/h ?
A motorist makes a trip of 180 miles. For the first 90 miles, she drives at a constant speed of
30 mph. At what constant speed must she drive the remaining distance, if her average speed for
the total trip is to be 40 mph?
Take the situation introduced on the Home page of this module:
Suppose you want to know if a new design of a product is actually better than the current product. For example, your design team is working on increasing the speed of the KX Speed Drill. You have produced a small batch of the new design, the K
Please see attached file.
An object is released from rest at time t = 0 and falls through the air, which exerts a resistive force such that the acceleration a of the object is given by a = g -bv, where v is the object's speedand b is a constant. If limiting cases for large and small values of t are considered, which of the f
Driving Marathon. Felix drove 800 miles in x hours on Monday.
1) write a rational expression for his average speed.
2) On Tuesday he drove for 6 hours at the same average speed. Write a rational expression for his distance on Tuesday.
A cannon is pointed at a 60 degree angle relative to a flat horizontal field. It fires a projectile with a muzzle speed of 1500 ft/s. Then, the gunners change the angle to 30 degrees, reload the cannon, and 5s later, fire. What is the required muzzle speed for the second projectile to hit the ground at the same time as the first
Please assist in resolving the word problem:
A person having a boat will go 15 miles per hour in still water. If the person can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what time is the speed of the current?