Recent content by dareupgang

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    How Does Incline Angle Affect Launch Speed in a Spring-Powered Pinball Machine?

    Homework Statement The ball launcher in a pinball machine has a spring that has a force constant of 1.20 N/cm The surface on which the ball moves is inclined 10.0° with respect to the horizontal. If the spring is initially compressed 5.00 cm, find the launching speed of a 100-g ball...
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    What is the Work Done by a Force Moving an Object from the Origin to x=5.0m?

    I checked the solution manual and for some reason they extracted the 4 outside the integral 4 ∫(x^2)/2 0 to 5 Is the 4 a constant ? is that why they pulled it out
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    What is the Work Done by a Force Moving an Object from the Origin to x=5.0m?

    Homework Statement A force F = (4xi + 3yj) N acts on an object as the object moves in the x direction from the origin to x = 5.0m. Find the work W= Integral F x dr done by the force on the object Homework Equations W= ∫Fx dr The Attempt at a Solution ∫4xi 2x^2 0 to 5