Awoman is going to a friends house to discuss opening a business. at 11am she starts from rest and accelerates at a constant 2.5m/s2 for 9s to get to cruising speed. she drives for 15 minutes at this constant speed before she enters city traffic. she stops at her friends house which is straight lined from hers 27km. she arrives at 12: 15. time interval is 11 to 12: 15.
what is her initial velocity? what is her final velocity? what is her average velocity? what is her velocity 9s into the trip?

a) Since the woman starts from rest hence her initial velocity equals 0 m/s.

b) We can calculate the final velocity as follows

1) Distance covered while accelerating for 9 seconds is

2) Cruising speed =

Distance covered while travelling for 15 minutes at cruising speed =

Since the woman cover's 27 km in total hence the speed she travles with traffic speed can be calculated as

hence the final speed of woman =

Average velocity =

Her velocity 9 seconds into trip is calculated earlier as 22.5 m/s

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.  

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.