The best explanation for this observation is:
The car moves forward, while inertia keeps the balloon in place.
This is because of the principle of inertia, as stated in Newton's first law of motion, which posits that an object at rest will remain at rest, and an object in motion will remain in motion at the same speed and in the same direction unless acted upon by an unbalanced force. When the car starts moving forward, the air inside the car momentarily lags behind due to its own inertia, creating a higher pressure at the back of the car and lower pressure at the front. Since balloons move from high to low-pressure areas, the balloon moves forward (which appears to be backward relative to the car's sudden forward movement). The balloon itself didn't actually move backwards; it simply did not accelerate as quickly as the car did, giving the illusion that it moved backwards relative to the accelerating vehicle.
A balloon floats inside a stopped car. When the car starts moving forward, the balloon appears to move backward relative to the car. Which statement best explains this observation?(1 point)
Responses
The force of inertia on the balloon balances the force from the motion of the car.
The force of inertia on the balloon balances the force from the motion of the car.
Inertia prevents the force of the car from acting on the balloon.
Inertia prevents the force of the car from acting on the balloon.
The car moves forward, while inertia keeps the balloon in place.
The car moves forward, while inertia keeps the balloon in place.
The motion of the car creates an unbalanced backward force on the balloon.
1 answer