Message No.3741 from Jake , 10 April 2008 18:25:

Hi, I got this question in an online assesment and got it 'wrong'. I can't see where I went wrong but maybe I'm missing something.

Two blocks with different mass are attached to either end of a light rope that passes over a light, frictionless pulley that is suspended from the ceiling. The masses are released from rest, and the more massive one starts to descend. After this block has descended a distance 1.40m , its speed is 2.00m/s . If the mass of the 2 blocks combined is 13kg, what is the mass of the larger block?

I can only seem to get 7kg, but the answer says it should be 7.45.

Name *:
E-Mail:
Theme *:

Copy reply to my e-mail HTML text (ignore line breaking)

Text of answer* (Information about the forum)
> Hi, I got this question in an online assesment and got it 'wrong'. I can't see where I went wrong but maybe I'm missing something. > Two blocks with different mass are attached to either end of a light rope that passes over a light, frictionless pulley that is suspended from the ceiling. The masses are released from rest, and the more massive one starts to descend. After this block has descended a distance 1.40m , its speed is 2.00m/s . If the mass of the 2 blocks combined is 13kg, what is the mass of the larger block? > I can only seem to get 7kg, but the answer says it should be 7.45.

Insert: URL · e-mail · bold · italic · code · pseudographics · image · X¹²³ · X₁₂₃ · √  ·
α · β · γ · δ · ε · η · θ · λ · μ · ν · ξ · π · ρ · σ · τ · υ · φ · χ · ψ · ω · Δ · Λ · Ψ · Ω
∂ · ∑ · ∞ · ∫ · ≈ · ≠ · ≡ · ≤ · ≥ · < · > · ± · ² · ³ · µ · ž · ±

Add URL:
Link Title:
Upload image to server (gif èëè jpg)
Image (URL):

---

For Admin: Delete - Resend
Ôèçèêà â àíèìàöèÿõ - Êóïèòü äèñê - Òåñòû ïî ôèçèêå - Ãðàôèêè on-line

Ïàðòí¸ðû: