Log in
Physics
2
answers
0
watching
154
views
26 Nov 2019

The position of a particular particle as a function of time is given by r = ( 9.60ti + 8.85j - 1.00t^2k)m, where "t" is in seconds. A) Determine the particle's velocity as a function of time. B) Determine the particle's acceleration as a function of time. Both answers must be in terms of unit vectors i, j and k.

Watch
2
answers
0
watching
154
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Trinidad Tremblay
Trinidad TremblayLv2
20 Jul 2019
Already have an account? Log in
Share

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

The vector position of a particle varies in time according to theexpression
r = 3.00 i - 6.00 j, where "r" is in meters and t is inseconds.

a) Find an expression for the velocity of the particle as afunction of time.

b) Determine the acceleration of the particle as a function oftime

c) Calculate the particle's position and velocity at t= 1.00 s

Please provide step by stepinstructions thanks.

The vector position of a particle varies in time according tothe expression r = 7.20 i - 8.80t^2 j where r is in meters and t isin seconds.
(a) Find an expression for the velocity of the particle as afunction of time. (Use any variable or symbol stated above asnecessary.)
v =________ m/s

(b) Determine the acceleration of the particle as a function oftime. (Use any variable or symbol stated above as necessary.)
a =________ m/s^2

(c) Calculate the particle's position and velocity at t = 5.00s.
r = ________ m
v =_________ m/s

To find the velocity and acceleration vectors for uniform circularmotion and to recognize that this acceleration is the centripetalacceleration.
Suppose that a particle's position is given by the followingexpression:

\vec{r}(t)= R[\cos(\omega t)\hat{i} + \sin(\omega t)\hat{j}]
\,\ \qquad = R\cos(\omega t)\hat{i} + R\sin(\omega t)\hat{j}.

a) When does the particle first cross the negative x axis?
b)Find the particle's velocity as a function of time.
c)Find the speed of the particle at time t.
d)Now find the acceleration of the particle.
e)Your calculation is actually a derivation of the centripetalacceleration. To see this, express the acceleration of the particlein terms of its position r_vec(t).

Weekly leaderboard

Home
Homework Help 3,900,000
Physics 110,000
Start filling in the gaps now
Log in