A50.0-kg student stands on a 150-kg wooden plank. both start at rest on a frozen pond (assume the interface between pond and plank is frictionless). the student then walks with a constant velocity of 1.10 im/s relative to the plank. (a) what is the velocity of the plank relative to the frozen pond?

0.275 m/s in the opposite direction

Explanation:

m = Mass of student = 50 kg

M = Mass of plank = 150 kg

= Velocity of the student with respect to the plank = 1.1i m/s

As the linear momentum is conserved in the system

The plank will move at 0.275 m/s in the opposite direction

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

a

explanation:

no diagram was provided, but i'm guessing it's the one i've attached to my answer.

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