Acceleration Practice Problems: Solving for Distance and Magnitude

AI Thread Summary
To solve the acceleration practice problems, start by identifying the relevant kinematic equations. For the automobile problem, use the equation for distance under constant acceleration, which involves initial velocity, acceleration, and time, followed by the distance traveled at constant speed and the deceleration phase. For the speedboat, apply the formula for acceleration, which relates initial and final velocity to distance. It's crucial to show your work and include all variables in symbol form to demonstrate understanding. Engaging with the equations and calculations will lead to the correct answers in the specified units.
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I have no clue where to begin with these assignments, can anyone walk through the steps to these?

1. An automobile accelerates from rest at
1.7 m/s2 for 22 s. The speed is then held
constant for 29 s, after which there is an ac-
celeration of −5.8 m/s2 until the automobile
stops.
What total distance was traveled?
Answer in units of km

2. A speedboat increases in speed from 19.3 m/s
to 34.2 m/s in a distance 202 m.
Find the magnitude of its acceleration.
Answer in units of m/
 
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We need to see some effort on your part.

What equations do you have to work with?
 
This is all I was given
 
Can anyone help?
 
At least give us the variables in symbol form. You've got to show some effort.
 
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