Answer:
3 3/8 seconds.
Step-by-step explanation:
When it reaches the ground h = 0 so:
54t - 16t^2 = 0
16t^2 - 54t = 0
2t(8t - 27) = 0
t = 0 or t = 27/8 (we ignore the t = 0 ) so:
t = 3 3/8 seconds.
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Evaluate the indefinite integral:

Make the following substitution:

and then, the integral (i) becomes

Integrate it by applying the power rule:

Now, substitute back for u = sin x, so the result is given in terms of x:


I hope this helps. =)
Tags: <em>indefinite integral substitution trigonometric trig function sine cosine cosecant sin cos csc differential integral calculus</em>
Answer:
C
Step-by-step explanation:
The answer is false. if the quantities combine to make zero
Vector is a quantity having magnitude as well as direction
its important because these are best way to relate a relationship between speed acceleration velocity etc
and helps to understand how the world that is around u behave
so vectors are really important
hope it helps