2 m/s
At the speed of 5mph.
The fastest record speed attained by a human on foot is 27.44 miles per hour. This speed was attained by Usain Bolt in the 100 yard dash.
speed chickin
It is not clear which limit of speed the question is asking. If the question is referring to the maximum speed of light, even this can vary depending upon the situation, but in a vaccum, where light travels fastest, that speed is usually written at c. Of course, if the question is not referring to the maximum light of speed, then one must assume the question refers to matters of traffic. Before the advent of automobiles there were all ready speed limits in place for conveyance of wagons, carts or sleighs. In 1652, for example, in the city of New Amsterdam, which would later become New York City, decreed a law that prohibited any wagon, cart or sleigh from being rode or driven at a gallop and the drivers or conductors of said contraptions were required to walk along the lead horses with in the city.The first maximum speed limit of 10 miles per hour, (16km/h), was introduced in the United Kingdom in 1861. In 1901 the State of Connecticut introduced the first United States state law regulating motor vehicles. The maximum speed limit in the cities was set at 12 mph and 15 mph outside the cities. Why these speed limits are put in place has much to do with basic physics. The resulting kinetic energy of a collision involving a motor vehicle is proportional to the speed at impact. Any fatality becomes more probable when the speed at impact, which is correlated to the fourth power of the speed difference, rises much faster than kinetic energy. This depends on the type of collision which is not always the same speed of travel. It also had a lot to do with not scaring all the horses that were extant at the time.
The average speed of a horse's walk, which could be maintained for long distances, is three to four miles per hour. The average distance horses are capable of covering within one continuous day is thirty miles.
To get average speed, just divide distance by time. In this case, you divide whatever distance an object moves during the 11 seconds, by the 11 seconds.
(change in distance) divided by (time interval) = the object's average speed during that time interval.
The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval.
You haven't given us any information from which to calculate that speed. As far as we know from the question, the object isn't moving at all.
Using the definition of acceleration as change of speed / time, you basically need to know: * A time interval during which the object accelerates. * The velocity at the beginning of this time interval. * The velocity at the end of this time interval.
-1.92 m/s2
Average acceleration during the time interval = (change on speed) / (time for the change) =(98 - 121) / (12) = -23/12 = negative (1 and 11/12) meters per second2
Answer: The average speed of the object is 1.95 m/s. Explanation: Distance traveled by an object in the first interval, = 2 m Time is taken in firsts interval = 2 s Distance traveled by an object in the second interval, = 80 mm Time taken in second interval = 40 s The average speed of the object is 1.95 m/s.
Acceleration. Deceleration is a decrease of speed during a given interval of time.
Acceleration = (speed at the end of some time interval minus speed at the beginning of the interval)/(length of the time interval)
b. -1.92 m/s2Minutes per second is not a unit of velocity. If the question meant meters per second, the answer is correct.
B -1.92 m/s2