3. When a car crashes into a brick wall, what is a good estimate of the force of

Question

3. When a car crashes into a brick wall, what is a good estimate of the force of the collision? a. The initial momentum of the car b. The initial momentum of the car divided by the amount of time for which the car had been driving ic. The initial momentum of the car divided by the mass of the car d. The initial momentum of the car divided by the d of the collision e. The kinetic energy of the car 3. When a car crashes into a brick wall, what is a good estimate of the force of the collision? a. The initial momentum of the car b. The initial momentum of the car divided by the amount of time for which the car had been driving ic. The initial momentum of the car divided by the mass of the car d. The initial momentum of the car divided by the d of the collision e. The kinetic energy of the car 3. When a car crashes into a brick wall, what is a good estimate of the force of the collision? a. The initial momentum of the car b. The initial momentum of the car divided by the amount of time for which the car had been driving ic. The initial momentum of the car divided by the mass of the car d. The initial momentum of the car divided by the d of the collision e. The kinetic energy of the car

Explanation / Answer

Force is given by

Force = rate of change of momentum

F = m(v - u)/t

here v = 0

F = -mu/t

so anser is b.

The initial momentum of the car divided by the amount of time for which the car had been driving

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.