A Particle Moves East at Constant Velocity for a Time

question 64

Multiple Choice

A particle moves east at constant velocity for a time interval DT.It then moves north at a constant velocity, with the same speed as before, for another time interval DT.Finally it moves east again with the original velocity.At the instant an additional time interval DT has elapsed, which of the following are true about the average velocity and the average acceleration for the motion described?

• A)The average velocity is and the average acceleration is zero.
• B)The average velocity is and the average acceleration is not zero.
• C)The average velocity is not and the average acceleration is zero.
• D)The average velocity is not and the average acceleration is not zero.

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Definitions:

Glycogen

A multibranched polysaccharide of glucose that serves as a form of energy storage in animals, fungi, and bacteria.

Skeletal System

The framework of bones and cartilages in the body, providing support, protecting internal organs, and facilitating movement.

Mechanical Forces

Physical actions that result in stress or strain upon an object or material, including pulling, pushing, twisting, and compression, significant in physics and engineering.

Synovial Fluid

A viscous fluid found in the cavities of synovial joints, lubricating and nourishing the cartilage and bones within the joint.