Answer: The work done on the flagstone is 20178 J
Explanation:
Power is the rate at which work is done . It is equal to the amount of work done divided by the time it takes to do the work.
Given : work = ?
Power = 342 W = 342J/s
Time = 59 s
Thus the work done on the flagstone is 20178 J
Payback time is when someone has to take the consequences of what they have done in the past. You can use this expression to talk about good or bad consequences.
It would be helpful if you draw the figure of the problem. You will see that a right triangle would be constructed by the problem where 19.0 is the angle between the hypotenuse and the base of the triangle. It is said that the force acting is said to be 9.0 N at the said angle to the horizontal. Using trigonometric relations,
cos 19 = adjacent / hypotenuse = horizontal component / 9
horizontal component = 8.51 N
So acceleration = (final velocity - initial velocity)/time
So (fv-iv)/t=a
(45-110)/4.5
Gives you (-130/9)km/h^2
You may have to convert the SI units so just follow my steps and change what must be changed
Answer:
-19.4 m
Explanation:
Given:
a = -1.77 m/s²
t = 3.33 s
v = -8.77 m/s
Find: Δx
Δx = vt − ½ at²
Δx = (-8.77 m/s) (3.33 s) − ½ (-1.77 m/s²) (3.33 s)²
Δx = -19.4 m
