Help on these 2 pls ASAP!!!!!! BTW ITS A SCI QUESTION

Physics

2 answers:

Ymorist [56]3 years ago

6 0

First one is unbalanced force

kenny6666 [7]3 years ago

3 0

Answer:

Net force

I think it’s balanced force

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In 1986, several robotic spacecrafts were sent into space to study the Halley's Comet. Which of these statements best explains w

Archy [21]

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When we learn something new, then we know more stuff,
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8 0

3 years ago

A mug rests on an inclined surface, as shown in (Figure 1) , θ=17∘.

Anna [14]

Refer to the figure shown below.

g = 9.8 m/s², the acceleration due to gravity.
W = mg, the weight of the mug.
θ = 17°, the angle of the ramp.

Let μ = the coefficient of static friction.

The force acting down the ramp is
F = W sin θ = W sin(17°) = 0.2924W N
The normal reaction is
N = W cosθ = W cos(17°) = 0.9563W N
The resistive force due to friction is
R = μN = 0.9563μW N

For static equilibrium,
μN = F
0.9563μW =0.2924W
μ = 0.3058

The frictional force is F = μN = 0.2924W
The minimum value of μ required to prevent the mug from sliding satisfies
the condition
R > F
0.9563μW > 0.2924W
μ > 002924/.9563 = 0.306

Answer:
The frictional force is 0.2924mg, where m = the mass of the mug.
The minimum coefficient of static friction is 0.306