Log in
Physics
2
answers
0
watching
153
views

Two particles A and B start from rest at the origin S = 0 and move along a straight line such that aA = (6t-3) ft/s2 and aB = (12t2 -8) ft/s2, where t is in second. Determining the distance between them when t = 4s and the total distance each has traveled in t = 4s

Watch
2
answers
0
watching
153
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
Rodolfo
RodolfoLv5
20 Oct 2019
Already have an account? Log in
Share

Related textbook solutions

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

Related questions

A particle moves according to a law of motion s = f(t), t ≥ 0, where t is measured in seconds and s in feet. f(t) = t3 − 9t2 + 24t.

  1. (a) Find the velocity at time t.
  2. (b) What is the velocity after 1 second?
  3. (c) When is the particle at rest?
  4. (d) When is the particle moving in the positive direction?
  5. (e) Find the total distance traveled during the first 6 seconds.
  6. (f) Draw a diagram like Figure 2 to illustrate the motion of the particle.
  7. (g) Find the acceleration at time t and after 1 second.
  8.  

Josef is late for a wedding and is speeding down a straight road at 145 km/hr when he passes an officer sitting in a police car parked behind a billboard at the side of the road. Two seconds after Josef's car passes him, the officer accelerates the police car from rest and maintains maximum acceleration of 8.5 km/hr s until he reaches a top speed of 210 km/hr. Eventually the officer gets within 150 m of the speeding vehicle and turns on the flashing lights. Josef sees the lights in his rearview mirror and panics, slamming on the brakes and starting to skid. Josef's car slows down at a rate of 5.5 m/s2. It takes the officer 0.5 seconds to realize what is happening and to move his foot to the brake pedal before he can start to slow down. The police car slows down at a rate of 6 m/s2.

Weekly leaderboard

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