If the mass of the egg is 60 grams (0.06 Kg), and the mass of your device is 0.5 Kg, calculate the Force of Gravity on your devi
1 answer:
Answer:
Force of gravity is 5.488 N.
Explanation:
Given:
Mass of the egg (m) = 60 g = 0.06 kg
Mass of the device (M) = 0.5 kg
Acceleration due to gravity (g) = 9.8 m/s²
Combined mass of the egg and device is the sum of the two masses. So,
Combined mass = Mass of egg + Mass of device
Combined mass = kg
According to Newton's second law, the net force acting on a system is equal to the product of its mass and acceleration acting on it due to the force.
Here, the force is gravitational pull of Earth. So, acceleration will be acceleration due to gravity.
Therefore, the force of gravity acting on the combined mass system is given as:
Force of gravity is 5.488 N.
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Answer:
20.4
Explanation:
To start doing this problem, first draw a free body diagram of the table. My teacher always tells us to do this, and I find that it is very helpful. I have attached a free body diagram to this answer- take a look at it.
First, let us see if Net force = MA. To do that, we need to determine whether the object is at equilibrium horizontally. For an object to be at equilibrium, it either needs to be moving at a constant velocity or not moving at all. Also, if an object is at equilibrium, there will not be any acceleration. But we know that there IS acceleration horizontally, so it cannot be in equilibrium. If it is not in equilibrium, we can use the formula ∑F= ma.
Let us determine the net force. Since the object is moving horizontally, we can ignore the weight and normal force, because they are vertical forces. The only horizontal forces we need to worry about are the applied force and force of friction.
Applied force = 1055 N (490 + 565)
Friction force= Unknown
To find the friction force, use the kinetic friction formula, Friction = μkN
μk is the coefficient, which the problem includes- it is 0.613.
N is the normal force, which we have to find.
*To find the normal force, we have to determine if the object is at equilibrium VERTICALLY. Since it has no acceleration vertically (it's not moving up/down), it is at equilibrium. Now, when an object is at equilibrium in one direction, it means that all the forces in that direction are equal. What are our vertical forces? Weight (mg) and Normal force (N). So it means that the Normal force is equal to the Weight.
Weight = mg = (40)(9.8) = 392 N
Normal force = 392 N
Now, plug it back into the formula (μkN): (0.613)(392) = 240.296 N
Friction = 240.296 N
Now that we know the friction, we can find the horizontal net force. Just subtract the friction force, 240.296 from the applied force, 1055 N
Horizontal Net Force: 814.704 N
Now that we know the net force, plug in the numbers for the formula
∑F= ma.
814.704 = (40.0)(a)
*Divide on both sides)
a = 20.3676 m/s^2
Round it to 3 significant figures, to get:
20.4
