(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Using slant board, the ball was forced to move from bottom to the top. The ball was at the distance of 0.3 meters twice: after 1 and 2 seconds after start moving. What's the start speed and acceleration of the ball? (a=const)

2. Relevant equations

[tex]\newline x = x_0 + V_0*t + \frac{a*t^2}{2}[/tex]

x₀ = 0 m

V₀ = 0 m/s

l = 0.3 m

t₁ = 1 s

t₂ = 2 s

3. The attempt at a solution

[tex]0.3 = 0 + V_0*1 + \frac{a*1^2}{2}[/tex]

[tex]\newline 0.3 = 0 + V_0*2 + \frac{a*2^2}{2}[/tex]

Here I can express, V₀. But I'm not sure the second expression is right. What's wrong?

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# Homework Help: What's the start speed and acceleration of the ball?

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