Answer:
<em>No, a rigid body cannot experience any acceleration when the resultant force acting on the body is zero.</em>
Explanation:
If the net force on a body is zero, then it means that all the forces acting on the body are balanced and cancel out one another. This sate of equilibrium can be static equilibrium (like that of a rigid body), or dynamic equilibrium (that of a car moving with constant velocity)
For a body under this type of equilibrium,
ΣF = 0 ...1
where ΣF is the resultant force (total effective force due to all the forces acting on the body)
For a body to accelerate, there must be a force acting on it. The acceleration of a body is proportional to the force applied, for a constant mass of the body. The relationship between the net force and mass is given as
ΣF = ma ...2
where m is the mass of the body
a is the acceleration of the body
Substituting equation 2 into equation 1, we have
0 = ma
therefore,
a = 0
this means that<em> if the resultant force acting on a rigid body is zero, then there won't be any force available to produce acceleration on the body.</em>
<em></em>
1. Is decreases, stronger
2. Pounds
W = 25 J
Explanation:
Work done on an object is defined as
16km because she is 8km away and if she goes back it’s gonna be 8km more so it’s 16km
The energy used is B) 43,200 J
Explanation:
The power used by the blender is related to the energy in input by the equation
where
P is the power
is the energy in input to the blender
t is the time interval
Since we know that
P = 300 W
t = 180 s
We can find that
However, we are said that the blender has an efficiency of 80%: this means that only 80% of the input energy is actually used to make the smoothie. Therefore, the energy used is
Learn more about power and energy:
brainly.com/question/7956557
#LearnwithBrainly