Answer :
a) On colliding, the truck applies a force on the stationary car, and the stationary car applies an equal opposite force on the trunk.
b) The front of the truck is designed to crumple in order to lower the force impact on stationary car accelerate both vehicles passengers - which protects the well-being of the passengers.
Firstly, we see that the collision between truck and car is a head of collision.
We have required to find the force which car apply on truck in opposite direction.
Force is a defined as the product of mass of object by acceleration of an object.
According to Newton's third law of motion, whenever one object applies a force on another object , the second object also applies an equal and opposite on the first one.
This is law tells that every action has equal and opposite reaction.
So, we conclude that if a truck applies a force on a stationary car during collision then stationary car also applies equal magnitude of force on truck but in opposite direction.
Now, a crumble is applied in front of truck before collision to stationary car.
force of impact is defined as the force generated when the objects collide with each other.
when a crumble designed in front of truck , it increase the collision time between truck and stationary car. As the time increase it implies acceleration of truck become smaller.
Mathematically , a = v/t
So, the force on the trunk becomes smaller.
because of Newton's second law of motion,
F = ma
therefore, if accleration is smaller then force applied by trunk is also smaller/ lower.
this results lower the force of impact and it saves the passengers from injury by protecting them from impact.
To learn more about Newton's laws of forces, refer:
https://brainly.com/question/28171613
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#Complete Question
Danica observes a collision between two vehicles. She sees a large truck driving down the road. It strikes a small car parked at the side of the road. Complete the passage summarizing the collision.
On colliding, the truck applies a force on the stationary car, and the stationary car applies - A smaller, A greater, An equal- . and opposite force on the truck. The front of the truck is designed to crumple in order to - Lower the force of impact, Apply maximum force on the stationary car, Accelerate both vehicles passengers - , which protects the well-being of the passengers
