PHYSICS In a very busy off-campus eatery one chef sends a 241-g broccoli-tomato-

Question

PHYSICS

In a very busy off-campus eatery one chef sends a 241-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter from left to right at 1.81 m/s. Almost simultaneously, the other chef launches a 311-g veggieburger-on-a-bun (with everything, but hold the horseradish) along the same counter from right to left at 2.19 m/s. The two delicacies collide head on at the given speeds-the counter is practically friction-free due to accumulated grease-and merge into a single, unbelievably savory serving. In what direction does the delectible dish move, if it moves at all? At what speed does it move? Enter a positive number.

Explanation / Answer

Initial net momentum towards right =0.241*1.81-0.311*2.19=-0.24488

- sign shows that momentum is towards left

So

finally it will move towards left

Momentum conservation:

0.24488=(0.241+.311)v

So

v=0.4436m/s

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