The United States has a variety of regulations to address the economic harm resulting from monopoly power in an industry. This includes the Sherman Act of 1890, the Clayton Act of 1914, and the Federal Trade Commission Act of 1914. These acts were aimed at restricting the formation of cartels and monopolies to protect consumers and ensure competition. The article The Oligopoly Problem argued that oligopolies fall through the cracks of these regulations and leave consumers unprotected from harmful business practices where industries are highly concentrated. Read the article and respond to the following in your initial post: What are examples of firms in an oligopolistic market that abuse their power? Explain how they abuse their power and describe the impact on consumers. Do you agree with the author’s feelings about increased government oversight of such industries? Why or why not? website for article is
June 21, 2017
Project 2
June 21, 2017


1. A certain freely falling object requires 1.10 s to travel the last 40.0 m before it hits the ground. From what height above the ground did it fall? ________m
2. A student throws a set of keys vertically upward to his fraternity brother, who is in a window 4.05 m above. The brother’s outstreched hand catches the keys
1.35 s later.
(a) With what initial velocity were the keys thrown? ______ m/s
(b) What was the velocity of the keys just before they were caught? (Take upward as the positive direction.) __________ m/s
3. A small mailbag is released from a helicopter that is descending steadily at 2.50 m/s.
(a) After 2.00 s, what is the speed of the mailbag?
___ m/s
(b) How far is it below the helicopter?
____ m
( c ) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 2.50 m/s?
_____ m/s
_____ m
4. A car starts from rest and travels for 7.0 s with a uniform acceleration of +2.5 m/s2. The driver then applies the brakes, causing a uniform acceleration of –
2.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following.
(a) How fast is the car going at the end of the braking period?
(b) How far has it gone?
5. Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for
any length of time will not cause injury, whereas an acceleration greater than 1000 m/s2 lasting for at least 1 ms will cause injury. Suppose a small child rolls off a
bed that is 0.41 m above the floor. If the floor is hardwood, the child’s head is brought to rest in approximately 2.1 mm. If the floor is carpeted, this stopping
distance is increased to about 1.0 cm. Calculate the magnitude and duration of the deceleration in both cases, to determine the risk of injury. Assume that the child
remains horizontal during the fall to the floor. Note that a more complicated fall could result in a head velocity greater or less than the speed you calculate.
Hardwood floor magnitude ___ m/s2 Duration _____ ms
Carpeted floor magnitude___ m/s2 Duration _____ ms


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