please help with part b A 1,265-kg car traveling initially with a speed of 25.0

Question

please help with part b

A 1,265-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into the rear end of a 8,200-kg truck moving in the same direction at 20.0 m/s (see figure below). The velocity of the car right after the collision is 18.0 m/s to the east. What is the velocity of the truck right after the collision? m/s (east) How much mechanical energy is lost in the collision? (Use input values with an adequate number of significant figures to calculate this answer.) kJ Account for this loss in energy.

Explanation / Answer

loss=.5*1265*25^2+.5*8200*20^2-.5*1265*18^2-.5*8200* 21.07987^2=8502.7 J this becomes heat and sound due to collision

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

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