A jet plane pilot decides to accelerate horizontally. If the thrust of the engine is increased to 50 000 N at a time when the air resistance ( or drag) acting on the 4000kg plane amounts to 30 000 N , what will the planes acceleration be
I believe you at the 50 000 and the 30 000 N to get f net, then 4000 kg is the mand , then just put the numbers into the equation a= fnet/m ? Am i on the right track?
yes
50,000 - 30,000 = fnet = m a
so
a = 20,000/4000 = 20/4 = 5 m/s^2
Sorry i meant 4000 kg is the mass
Yes, you are on the right track. To find the acceleration of the plane, you need to calculate the net force acting on the plane using Newton's second law of motion. The formula is:
f_net = f_thrust - f_drag
where f_net is the net force, f_thrust is the thrust of the engine, and f_drag is the air resistance or drag acting on the plane.
In this case, the thrust of the engine is given as 50,000 N and the air resistance is 30,000 N. Therefore, the net force is:
f_net = 50,000 N - 30,000 N
= 20,000 N
Next, you can use the formula for acceleration:
a = f_net / m
where a is the acceleration and m is the mass of the plane.
The mass of the plane is given as 4000 kg. Plugging in the values, the equation becomes:
a = 20,000 N / 4000 kg
= 5 m/s^2
So, the acceleration of the plane will be 5 m/s^2.
Yes, you are on the right track! To find the acceleration of the plane, you can use Newton's second law of motion, which states that the acceleration of an object is equal to the net force acting on it divided by its mass.
First, let's calculate the net force acting on the plane. To do this, you subtract the drag force from the thrust force:
Net force = Thrust force - Drag force
Net force = 50,000 N - 30,000 N
Net force = 20,000 N
Now we can use the formula for acceleration:
Acceleration = Net force / Mass
Acceleration = 20,000 N / 4,000 kg
Acceleration = 5 m/s^2
Therefore, the acceleration of the plane will be 5 m/s^2.