Acceleration is F/M = 250/30= 8.333m/s^2 downward
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Answer:
60°
Step-by-step explanation:
We'll begin by calculating EC. This can be obtained as follow:
Angle EAC = 39°
Hypothenus = EA = 3.7 m
Opposite = EC =?
Sine EAC = Opposite /Hypothenus
Sine 39 = EC / 3.7
Cross multiply
EC = 3.7 × Sine 39
EC = 2.3 m
Finally, we shall determine angle BEC. This can be obtained as follow:
Adjacent = EC = 2.3 m
Hypothenus = BC = 4.6 m
Angle BEC =?
Cos BEC = Adjacent / Hypothenus
Cos BEC = 2.3 / 4.6
Cos BEC = 0.5
Take the inverse of Cos
BEC = Cos¯¹ 0.5
BEC = 60°
Thus, angle BEC is 60°
When you are looking for a percent, the best way is to firstly find 10%. For this, you just divide your answer by 10, which in this case, gives 20. You should then divide the percentage that you are trying to find (65%) by ten. When you divide 65% by ten, you get 6.5%, and this is what you should multiply 20 by, in order to find your answer.
In this case, 6.5%x20= 130, hope this has been able to help you.
15 and 450 because you divide and multiply until you get the same number