A chair is pushed forward with a force of 185 N. The gravitational force of earth on the chair is 155 N downward. The force of f
riction acting on the chair is 55 N. Draw a free-body diagram showing all forces acting on the chair. Determine the magnitude of any missing force values AND determine the net force acting on the chair.
2 answers:
The net force on the chair is 100N
<u>Explanation:</u>
The free body diagram is attached below.
According to the condition,
when a downward gravitational force of 155N of earth acts then an equal opposite upward force of same magnitude also acts on the chair.
Therefore, the normal force acting on the chair is 155N
When a chair is pushed forward on a surface, then a frictional force also acts on it in opposite direction.
The net force acting on the chair is = F - f
Where,
F is the applied force
f is the force of friction
Net force = 155N - 55N
Fnet = 100N
Therefore, net force on the chair is 100N
You might be interested in
2g/mL
Explanation:
Given parameters :
Mass = 10g
Volume = 5mL
Unknown:
Density of the object = ?
Solution:
Density is defined as the mass per unit volume of a body.
Density =
Now, input the values in the equation:
Density = = 2g/mL
Learn more:
Density brainly.com/question/5055270
#learnwithBrainly
Answer:
2m/s
Explanation:
Given parameters:
Mass of truck = 9000kg
Kinetic energy = 18000J
Unknown:
Speed = ?
Solution:
Kinetic energy is the energy due to the motion of a body;
K.E = mv²
So;
m is the mass
v is the speed
2 KE = mv²
2 x 18000 = 9000 x v²
v² = 4
v = 2m/s