Last night, shirley worked on her accounting homework for one and one half hours. during that time, she completed 6 problems. what is the velocity in problems per hour?

a. 6 per hour
b. 4 per hour
c. 10 per hour
d. 0.67 per hour
e. 15 per hour

velocity in problems per hour = 4 per hour

so correct option is b. 4 per hour

Explanation:

given data

worked on  homework time = 1.5 hour

completed = 6 problems

to find out

What is the velocity in problems per hour

solution

we know that Shirley solve complete 6 accounting homework problem in 1.5 hour so her velocity  in problems per hour will be as

velocity in problems per hour =     ..................1

put here value we will get

velocity in problems per hour =  

velocity in problems per hour = 4 per hour

so correct option is b. 4 per hour

we need to know the time interval during which the force acts. impulse of force = momentum change