Answer:
B
Explanation:
The question does not specify any outside forces that could slow down the ball horizontally. There fore the ball does not accelerate or decelerate horizontally. Therefore, a = 0m/s2
Answer:
dehydration, lots of sweating, heat stroke, heat exhaustion: nausea, dizziness, vomitting, diahreaa, headache
Explanation:
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Lower mass: 1.20 kg, upper mass: 1.28 kg
Explanation:
In order to solve the problem, we consider the forces acting on the upper mass only first.
The upper mass is acted upon three forces:
- The applied force
, upward - The weight of the mass itself,
, where
is the upper mass and
is the acceleration of gravity, downward - The tension in the string,
, downward
Therefore, the equation of the forces for the upper mass is:

where
is the acceleration (upward)
Solving for
,

Now we can find the lower mass by considering the forces acting on it:
- The tension in the string, T = 16 N, upward
- The weight of the mass itself,
, where
is the lower mass, downward
So the equation of the forces is

And solving for the mass,

Learn more about acceleration and forces:
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When the contracting gas and dust from nebula become so dense and hot that nuclear fusion starts