Velocity of a sinussodial function

1 reply · 1K views · last reply
notsam
Messages
50
Reaction score
0

Homework Statement

A sinusoidal function of time is
x = (4.7 m) cos[(0.2 rad/s)(4.5 s)] .
Find the magnitude of the velocity v.



Homework Equations





The Attempt at a Solution

HELP! :)
 

Discussion

What's the "4.5 s" parameter in the cosine function? Shouldn't there be a 't' variable in there if the position is a function of time?
 

Similar threads

Calculating the time needed until a known velocity for a vehicle with friction as a function of velocity
  • Patrick Herp
  • · Replies 3 ·
  • Introductory Physics Homework Help
Replies
3
Work done for round trip when force is function of velocity
  • Ebby
  • · Replies 17 ·
  • Introductory Physics Homework Help
Replies
17
An expression for the vertical velocity as a function of time
  • Physil
  • · Replies 5 ·
  • Introductory Physics Homework Help
Replies
5
Find the function of velocity of a person that accelerates to a constant v
  • diazdaiz
  • · Replies 3 ·
  • Introductory Physics Homework Help
Replies
3
Expressing horizontal velocity as a function of time for a wave
  • JoeyBob
  • · Replies 1 ·
  • Introductory Physics Homework Help
Replies
1
The velocity of the particle as a function of time
  • yesmale4
  • · Replies 3 ·
  • Introductory Physics Homework Help
Replies
3
Relationship between linear velocity and angular velocity
  • good jelly
  • · Replies 7 ·
  • Introductory Physics Homework Help
Replies
7
Velocity of a cart moving in the rain as a function of time
  • Hamiltonian
  • · Replies 4 ·
  • Introductory Physics Homework Help
Replies
4
Finding displacement from a velocity function without integrals
  • Elementard
  • · Replies 4 ·
  • Introductory Physics Homework Help
Replies
4
Finding velocity as a function of distance from v(t)
  • Marcell
  • · Replies 15 ·
  • Introductory Physics Homework Help
Replies
15