Recent content by Genoseeker

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    Block and tackle and tension forces

    that pulley system has a Mechnical Advantage (MA) of 5. with that said F = ( Pp + Pp + PL ) / 5 if you actually have that pulley system in your class then you can run a little physics learning experiment. Lift an object 10 cm off of the ground and measure how much of the rope you...
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    Find the Centripetal Acceleration at 2.5m from a Rotating Platform

    its called the EDIT button. please learn to use it.
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    Find the Centripetal Acceleration at 2.5m from a Rotating Platform

    ω the RED needs your attention. Also the linear velocity changes based on the radius. ANGULAR (ω) velocity remains constant though. the first Centripetal Acc is correct the second one is wrong. formula to use v = ω * r use the initial v and r to find ω. then use ω and new r...
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    Calculate the speed of a projectile from the angle and maximum height.

    Vx = Vy / tan (theta) What is this portion for? Answer. they are asking for the horizontal velocity and this finds the horizontal velocity from the vertical velocity.
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    Calculate the speed of a projectile from the angle and maximum height.

    yep that is the simplified version of one of the 5 kinematics equations. and is ONLY true for free falling objects in parabolic motion. Vyi = squareroot (2 * 9.8 * MAX Height) it does not work all the time but i does for your case
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    How Do You Calculate the Launch Angle for Intersection of Two Moving Objects?

    X = the distance (X-axis) from origin of the final position of both objects when they meet. Y = the distance (Y-axis) from origin of the final position of both objects when they meet. y1 = distance traveled by object 1 in the Y-axis y2 = distance traveled by object 2 in the Y-axis x1 = distance...
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    Calculate the speed of a projectile from the angle and maximum height.

    Vy = squareroot (2gh) from the formula Vf^2 = Vi^2 +2*a*y Vx = Vy / tan (theta) TOA..
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    A confusion related to Significant figures

    significant digits are mostly non-zero digits. best way to tell how many sig. figs. a number has is to convert it to scientific notation. (DO NOT ROUND OFF).. 56800 -> 5.68 x 10 ^ 4 5 6 8 three sig figs. 0.00052 ->5.2 x 10 ^ -4 5 2 two sig figs. 1000.001 ->...
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    Finding moment of inertia of a pulley

    that is kinda wrong. T1>T2 think of it like this. T2 is a force caused by m1g on m2 T1 is a force caused by m2g on m1
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    Finding moment of inertia of a pulley

    you are forgotting what T1 and T2 are actually doing.. T1 > T2 that part is clear. but... T1 is increase net acc of the system by pulling m1 upwards. T2 is decrease net acc of the system...aka...slowing down m2...by pulling it upwards. So when T1 > T2 that means the system rotates in the...