A Rocket Explodes into Three Pieces of Equal Mass

question 7

Multiple Choice

A rocket explodes into three pieces of equal mass.Immediately after the explosion their velocities are (120 m/s,south) ,(240 m/s,north) and (120 m/s east) .What was the velocity of the rocket's center of mass before the explosion?

• A)40 m/s,northeast
• B)57 m/s,northeast
• C)120 m/s,northeast
• D)170 m/s,northeast

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Definitions:

Color Blindness

A visual impairment where one is unable to distinguish between certain colors, often resulting from a deficiency or absence of color-sensitive photoreceptor cells in the eye.

Trichromatic Theory

A theory of color vision that proposes three types of color receptors in the eye, each sensitive to red, green, or blue.

Opponent-Process Theory

Theory stating that cells in the visual system respond to complementary pairs of red-green and blue-yellow colors; agiven cell might be excited by red and inhibited by green, whereas another cell might be excited by yellow and inhibited by blue

Afterimages

Visual illusions in which retinal impressions persist after the removal of a stimulus, often in complementary colors.