Q3- A 3kg box slides down 1m long incline as in the figure. The box starts...

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Answer 1

Answer #1

3) let the speed at the bottom is v

Using work energy theorum

0.50 * m * (v^2 - u^2) = m * g * h - f * d

0.50 * 3 * (v^2 - 0^2) = 3 * 9.8 * 0.50 - 5 * 1

solving for v

v = 2.54 m/s

the speed at the bottom is 2.54 m/s

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Answer 2

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