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Paha777 [63]
2 years ago
12

Can someone help? pls

Physics
2 answers:
Vladimir79 [104]2 years ago
8 0

Answer:

I do believe its B because its parallel

Explanation:

ivanzaharov [21]2 years ago
6 0
I’m gonna guess it’s b. hope this helps.
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Answer: V_{f}=2.96m/s    

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w_{y}=wcos(\theta)    (2)

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So:

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a=g.sin(\theta)    (8)

a=5.88m/{s}^{2}    (9)   >>>>This is the acceleration of the block

On the other hand, we have the following equation that expresses a <u>relation between</u> the distance d with the acceleration a and time t:

d=\frac{1}{2}a{t}^{2}   (10)

We already know the value of  d and calculated a, we have to find t:

t=\sqrt{\frac{2d}{a}}   (11)

t=\sqrt{\frac{2(0.75m)}{5.88m/{s}^{2}}}   (12)

t=0.50s   (13) >>>This is the time it takes to the block to go from the initial velocity V_{o} to its final velocity V_{f}

If the acceleration is the variation of the velocity in time, we can use the following equation to find V_{f}:

V_{f}-V_{o}=a.t   (13)

If V_{o}=0

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