A child sitting in an open car traveling at constant speed tosses a ball vertically upward. The ball lands _________?
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Answer: A. behind him
Explanation
Inertia causes the tossed ball to maintain its initial horizontal velocity with the car. Air resistance exerts a backward force that decelerates the ball relative to the moving vehicle. Consequently the ball lands behind the child because the car continues moving forward faster. Newton first law of motion states that objects maintain their state of motion unless acted upon. Relative motion describes how an object position changes depending on the observer frame. Projectile motion combines horizontal inertia with vertical gravitational acceleration during free flight.
Physics demonstrations often use moving vehicles to illustrate the principles of relative velocity. Passengers inside accelerating or decelerating trains experience inertial forces acting on their bodies. Aerodynamic drag significantly impacts moving objects by creating opposing frictional resistance forces. In front of him would require the car to decelerate rapidly while the ball remains airborne. Into his hand assumes zero air resistance acting upon the vertically tossed projectile. By his side ignores the forward momentum maintained by the vehicle during the toss.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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