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A truck of mass 2630 kg and a car of mass 890 kg in a demolition derby are about to crash into one another. The truck is moving with a speed of 10.2 m/s at an angle of ý = 50.4° and the car is moving with a speed of 11.5 m/s at an angle of 0 = 34.6° as indicated in the figure. The collision is perfectly inelastic. What is the y component of the velocity of the wreck just after the collision?

A truck of mass 2630 kg and a car of mass 890 kg in a demolition derby are about to crash into one another. The truck is moving with a speed of 10.2 m/s at an angle of ý = 50.4° and the car is moving with a speed of 11.5 m/s at an angle of 0 = 34.6° as indicated in the figure. The collision is perfectly inelastic. What is the y component of the velocity of the wreck just after the collision?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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My question is in the image.

I know that the answer is 3.21 m/s but I dont know how to get it. I know I need to use (m1+m2)vf=m1v1i+m2v2i but when I do that I get 6.74 m/s. Where am I going wrong?

A truck of mass 2630 kg and a car of mass 890 kg in a demolition derby are about to crash into one another. The truck is moving with a speed of 10.2 m/s at an angle of ý = 50.4° and the car is moving with a speed of 11.5 m/s at an angle of 0 = 34.6° as indicated in the figure. The collision is perfectly inelastic. What is the y component of the velocity of the wreck just after the collision?
Transcribed Image Text:A truck of mass 2630 kg and a car of mass 890 kg in a demolition derby are about to crash into one another. The truck is moving with a speed of 10.2 m/s at an angle of ý = 50.4° and the car is moving with a speed of 11.5 m/s at an angle of 0 = 34.6° as indicated in the figure. The collision is perfectly inelastic. What is the y component of the velocity of the wreck just after the collision?
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