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Len [333]
3 years ago
10

3. An object of mass 90 kg travels down a slide.

Physics
1 answer:
Zolol [24]3 years ago
6 0
Gpe= 90* 9.81 * 15 = 13243.5 Joules

KE= 13243.5 =1/2 m v^2
v^2= 295.3
v= 17.2 m/s
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The x vector component of a displacement vector has a magnitude of 146 m and points along the negative x axis. The y vector comp
larisa86 [58]

Answer:  

a) the magnitude of r is  184.62

b) the direction is 37.74° south of the negative x-axis

   

Explanation:

Given the data in the question;

as illustrated in the image blow;

To find the the magnitude of r, we will use the Pythagoras theorem

r² = y² + x²

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we substitute

r = √((-113)² + (-146)²)

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Therefore, the magnitude of r is  184.62

To find its direction, we need to find ∅

from SOH CAH TOA

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7 0
2 years ago
How is acceleration calculated?
steposvetlana [31]

Answer:

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4 0
3 years ago
Read 2 more answers
In certain cases, using both the momentum principle and energy principle to analyze a system is useful, as they each can reveal
kramer

Explanation:

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F_G = G * \frac{m_1 m_2}{r^2} \\

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8 0
3 years ago
SP1b.
nata0808 [166]

Answer:

2 m/s^2, west

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=

\frac{15 - 25}{5}

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3 0
2 years ago
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