Question

An air-track cart with mass m=0.40kg and speed v0=1.2m/s approaches two other carts that are at...

An air-track cart with mass m=0.40kg and speed v0=1.2m/s approaches two other carts that are at rest and have masses 2m and 3m, as indicated in (Figure 1). The carts have bumpers that make all the collisions elastic.

A) Find the final speed of cart 1, assuming the air track extends indefinitely in either direction. Express your answer to two significant figures and include appropriate units.

B) Find the final speed of cart 2, assuming the air track extends indefinitely in either direction. Express your answer to two significant figures and include appropriate units.

C) Find the final speed of cart 3, assuming the air track extends indefinitely in either direction. Express your answer to two significant figures and include appropriate units.

Homework Answers

Answer #1

Final answers with significant figures

V1( cart 1) = 0.13 m/s

V2(cart 2) = 0.11 m/s

V3(cart3) = 0.42 m/s

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