[tp widget="default/tpw_default.php"]
Uncategorized

a compact car and a semi truck are both traveling

a compact car and a semi truck are both traveling插图

Why do two vehicles experience the same force in a collision?

The two vehicles experience a force of the same magnitude due to Newton’s third law: However, what you’re probably thinking about is that motion of the car is more drastically affected by the collision. This can be explained by Newton’s second law. Let’s say the truck has mass M and the car has mass m.

Are the forces on a truck and a car the same?

The forces on the car and truck are equal and opposite. However, the force on someone sitting in either vehicle is not the same (assuming the frame around them stays rigid enough). As joshphysics explained, the equal forces cause accellerations of the truck and car inversely proportional to their mass.

What happens to momentum when a truck and a car collide?

During the small time frame of the collision we generally assume that there is no transfer of momentum into or out of the system of the car and truck. Changes of momentum are called impulses and are calculated by The duration of the collision is Δ t so the force of the car on the truck lasts exactly as long as the force of the truck on the car.

Why does a truck accelerate faster than a car in collision?

However, what you’re probably thinking about is that motion of the car is more drastically affected by the collision. This can be explained by Newton’s second law. Let’s say the truck has mass M and the car has mass m. If the magnitude of the force that both vehicles experience is F, then the magnitudes of their respective accelerations are

How many Q&A communities are there on Stack Exchange?

Stack Exchange network consists of 178 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

How many reputations do you need to answer a highly active question?

Highly active question. Earn 10 reputation (not counting the association bonus) in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.

Is the force on a car and truck the same?

The forces on the car and truck are equal and opposite. However, the force on someone sitting in either vehicle is not the same (assuming the frame around them stays rigid enough). As joshphysics explained, the equal forces cause accellerations of the truck and car inversely proportional to their mass. Assuming you sitting in one of these vehicles are a relatively small portion its overall mass, then what you feel is proportional to the accelleration of the vehicle around you.

Is it better to sit in a car or drive in a collision?

Even putting aside getting physically crushed, you are therefore better off in a more massive vehicle in a collision. Think of a extreme case. You are driving a long and a bug gets splatted on the windshield. Your car and the bug both got pushed with the same force, but the resulting change in velocity (the accelleration) of the bug was much higher. As a result, you sitting in the car had a rather better experience than the bug.

How many compartments are there in a train?

The figure below shows a train with 3 compartments only. Each of the compartments has a mass of 30 tons . Two of them are motor cars while the other one is a trailer car. Each of the motor cars provides a driving force F. Suppose the train is accelerating

How fast does a 910 kg car go?

A 910 kg sports car slows down to 6.0 m/s to read a cross street sign. The 1440 kg pick-up truck following the sports car fails to see that the sports car has slowed and continues traveling at 17.0 m/s. The pick-up slams into the sports car. With what

What is a semi trailer?

A semi-trailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway truck ramp that is inclined at an angle of 13.0° above the horizontal. The semi-trailer coasts to a stop after traveling 190 m along the

How far behind a truck is a car traveling 84 km h?

A car traveling 84 kmh is 150 m behind a truck traveling 67kmh. How long will it take the car to reach the truck? (Second) I’ll got the answer and it was 30 second But I really dono how It was solved I need the wayyy; ( (

What is the speed of a car in an easterly collision?

A 1,225-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,500-kg truck moving in the same direction at 20.0 m/s. The velocity of the car right after the collision is 18.0 m/s to the east. (a) What

How far away is a car traveling 100 km/h?

A car traveling 100 km/h is 200m away from a truck traveling 50 km/h (in the same direction). Assuming constant braking acceleration, what is the minimum deceleration the car must have if it is not to hit the truck? Can someone hint me on how I can start

What is the speed of a truck when a traffic light turns green?

At the instant the car begins to accelerate, a truck with the constant velocity of 21 m/ second squared passes in the next lane. HINT:Set the 2