Home Work& Micosualit Edge 1177832 Home Work Problem 7 76 Problem 7.76 Calculate

Question

Home Work& Micosualit Edge 1177832 Home Work Problem 7 76 Problem 7.76 Calculate the average force exerted on the car by the barrien Express your answer to two significant figures and include the appropriate units. Enter positive value i the direction of the force is in the direction of the initial velocity and negative value the direction of the force is in the direction opposite to the initial velocity. You are the design engineer in charge of the astwo thiness of new a tomotde models Cars are tested by smashing them into fixed, massive barriers at 60 km/h. A new model of mass 1300 kgtakes 0.12 sfrom the time of impact unt it is brought to rest a Value Units My Answers Gve U Part B Caloulate the average acceleration of the car during the impact in g's Expeess your answer using two significant figures. Enter positive value if the direction of the accelecation is in the direction of the initial velocity and negative value if the direction of the acceleration is in the direction opposite to the initial velocity gs My Answers Give Up Type here to search ILD

Explanation / Answer

Velocity = 60km/h = 16.7 m/s

m = 1300 kg

t = 0.12 s

Now
b) Acceleration = (v/t) = 16.7/0.12 = -139.2 m/s^2.
a) Average force = (ma) = 1300 x 139.2 = 180960 N

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

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