A 53.5 N object is in free fall.
What is the magnitude of the net force
which acts on the object?
Answer in units of N
What is the magnitude of the net force when
the object encounters 15.4 N of air resistance?
Answer in units of N
What is the magnitude of the net force when it
falls fast enough to encounter an air resistance
of 53.5 N?
Answer in units of N
Well, let's get straight to the point!
For the first question, when the object is in free fall, the magnitude of the net force acting on it would simply be its weight, which is 53.5 N. So, the answer is 53.5 N.
Now, when the object encounters 15.4 N of air resistance, we need to subtract that from its weight to find the net force. So, the magnitude of the net force in this case would be 53.5 N - 15.4 N = 38.1 N.
Finally, when the object falls fast enough to encounter an air resistance of 53.5 N, well, it's a stalemate! The air resistance equals the weight of the object, so the net force would be zero. It's like the object and the air resistance giving each other a high-five and cancelling each other out!
Hope that answers your questions in an amusing way! If you have any more, feel free to ask.
To calculate the magnitude of the net force in each situation, we need to consider the force of gravity and the force of air resistance.
1. When the object is in free fall, the only force acting on it is the force of gravity. Therefore, the magnitude of the net force is equal to the force of gravity:
Magnitude of net force = 53.5 N
2. When the object encounters 15.4 N of air resistance, we need to subtract the force of air resistance from the force of gravity to get the net force:
Magnitude of net force = Force of gravity - Force of air resistance
Magnitude of net force = 53.5 N - 15.4 N
Magnitude of net force = 38.1 N
3. When the object falls fast enough to encounter an air resistance of 53.5 N, the force of gravity and the force of air resistance will be balanced, resulting in zero net force. Therefore, the magnitude of the net force is zero:
Magnitude of net force = 0 N
To find the magnitude of the net force acting on the object in each scenario, we need to consider the gravitational force and any additional forces acting on it.
1. When the object is in free fall, the only force acting on it is the gravitational force, which can be calculated using the equation: F = m * g, where F is the gravitational force, m is the mass of the object, and g is the acceleration due to gravity (approximately 9.8 m/s²). Therefore, the magnitude of the net force in this scenario is 53.5 N.
2. When the object encounters 15.4 N of air resistance, the net force can be calculated by subtracting the air resistance from the gravitational force. Since the air resistance is opposing the motion and has a magnitude of 15.4 N, the net force would be 53.5 N - 15.4 N = 38.1 N.
3. When the object falls fast enough to encounter an air resistance of 53.5 N, the net force would be zero. This is because the gravitational force and air resistance force are equal in magnitude but opposite in direction, resulting in a balanced net force.
a) 52.5
b) 52.5-15.4
c) 0