Chapter 6, Problem 14CQ

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Chapter
Section

### College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

# An open box slides with constant speed across the frictionless surface of a frozen lake. If water from a rain shower fails vertically downward into it, does the box: (a) speed up, (b) slow down, or (c) continue to move with constant speed?

To determine
The velocity of the box.

Explanation

Give Info:

An open box slides with constant speed across the frictionless surface. Water from rain shower falls vertically downward into the box.

To know the Velocity of box when water falls into it, can be found using the concept of momentum.

Momentum: The linear momentum pâ†’ of an object of mass m moving with velocity vâ†’ is the product of the mass and velocity.

Pâ†’=mvâ†’

• Pâ†’ is the momentum on the object
• m is the mass of the object.
• vâ†’ is the velocity of the object

Momentum is a vector quantity with the same direction as the objectâ€™s velocity

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