Represents a moving pulse where and are in metre and in second

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Waves Sound and Physical Optics · Waves Sound and Physical Optics

Problem

y(x, t) = \frac{0.8}{[(4x + 5t)^2 + 5]}

represents a moving pulse where

x

and

y

are in metre and

t

in second. Then, choose the correct alternative(s): (1) pulse is moving in positive

x

-direction (2) in 2 s it will travel a distance of 2.5 m (3) its maximum displacement is 0.16 m (4) it is a symmetric pulse