Answer:
The magnitude of the given vector is 
Explanation:
For any given vector 
The magnitude is given by
comparing with the given vector 
we get
x = 1, y = -2, z = 3
Thus the magnitude of vector A is
Answer:
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Explanation:
Answer:
Y = 176.4 m
Explanation:
For the height of cliff we will analyze the vertical motion. We will apply the 2nd equation of motion:
Y = V₀y*t + (0.5)gt²
where,
Y = Height = ?
V₀y = Initial Vertical Velocity = 0 m/s (since, ball is thrown horizontally)
t = time = 6 s
g = 9.8 m/s²
Therefore,
Y = (0 m/s)(6 s) + (0.5)(9.8 m/s²)(6 s)²
<u>Y = 176.4 m</u>
To find the x component use the following formula, where Ф = theta = the angle 'a' makes with the x axis.
I'm almost positive the answer is a.
