How Long to Travel 12m at 0.20m/s² Starting at 3.0m/s?

In summary, the first scenario involves calculating the time it takes for an object to travel a distance of 12m while accelerating uniformly at a rate of 0.20m/s^2 from an initial velocity of 3.0m/s. The answer is 3.5 seconds. In the second scenario, Chris accelerates his SUV at a rate of 4.0m/s^2 for 10 seconds, then travels at a constant velocity for 12 seconds, and finally comes to rest over a displacement of 100m. The total displacement is 780m and the average velocity is 29m. The equations used in these types of kinematics problems are x=x_0 + V_0*t + .5
  • #1
mat1101
42
1

Homework Statement


Accelerating uniformly at a rate of 0.20m/s^2 from initial velocity of 3.0m/s, how long will it take to travel a distance of 12m


Homework Equations





The Attempt at a Solution


Answer is 3.5 seconds
But I don't know how you get that

Also another question

Chris accelerrates his massive SUV from rest at a rate of 4.0m/s^2 for 10s. he then travels at a constant velocity for 12s and finally comes to rest over a displacement of 100m. Determine his total displacement and average velocity,

Answer is 780m;29m

Please help!
 
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  • #2
well do you know the equations for kinematics problems?

I.e

x=x_0 + V_0*t + .5at^2
 

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Grade 11 Physics typically covers topics such as kinematics, dynamics, energy and momentum, waves and optics, electricity and magnetism, and modern physics.

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