Exams › NEET › Physics

A fly strikes the windshield of a moving truck as shown. What can you say about the forces: the force on the fly and the force on the truck.

1. Force on the fly \( > \) Force on the truck
2. Force on the fly \( < \) Force on the truck
3. Force on the fly = Force on the truck
4. None of thes

Correct answer: Force on the fly = Force on the truck

Solution

When the fly hits the truck, each exerts a force on the other that is equal in magnitude and opposite in direction. The fly is damaged more because its much smaller mass gives it a much larger acceleration, not because the force is larger.

Related NEET Physics questions

• \( g c m s^{-2} \) is also known as
• The coefficient of limiting friction between the surfaces of contact is the ratio of the \( \ldots \). friction to the normal reaction
• Point where whole weight of body acts vertically is called
• In a physical balance working on the principle of moments, when \( 5 \mathrm{mg} \) weight is placed on the left plan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct?
• A box is placed on an inclined plane and has to be pushed down. The angle of inclination is :
• A rubber ball of mass \( 4 \mathrm{kg} \) has the same diameter as a plastic ball of mass 0.5 kg. Both the balls are dropped simultaneously from the roof of a building.When they are \( 8 \mathrm{m} \) above the ground,they have the same

⚔️ Practice NEET Physics free + battle 1v1 →