Swinging Operator
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NEW Dual Swinging Gate opener Swing operator opener AK142 Solar Friendly $339.00 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $499.00 |
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NEW Dual Swinging Gate opener Swing operator opener AK142 Solar Friendly $339.00 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $499.00 |
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NEW Dual Swinging Gate opener Swing operator opener AK142 Solar Friendly $339.00 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $499.00 |
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NEW Dual Swinging Gate opener Swing operator opener AK142 Solar Friendly $339.00 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $499.00 |
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NEW Dual Swinging Gate opener Swing operator opener AK142 Solar Friendly $339.00 |
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YG5602 Gatekeeper Dual Swinging Gate Opener Operator $399.99 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $499.00 |
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NEW Dual Swinging Gate opener Swing operator opener AK142 Solar Friendly $339.00 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $499.00 |
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NEW Dual Swinging Gate opener Swing operator opener AK142 Solar Friendly $339.00 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $499.00 |
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Dorma ED400 Swinging Door Operator LH Full power motor gear box $1,999.00 |
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Swinging Swivel Operator Enclosure Station, 30″x22″x14-3/4″D, VERY NICE $250.00 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $349.00 |
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Swinging Swivel Operator Station Swing Electrical Enclosure Control Panel CNC $299.99 |
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NEW Dual Swinging SOLAR POWERED Gate opener Swing operator opener Full Kit AK142 $509.00 |
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YG5602 Gatekeeper Dual Swinging Gate Opener Operator $599.99 |
physics help mechanical energy question!?
a wrecking ball swings at the end of a 12.0 m cabelon vertical circular arc. the crane operator manages to give the ball a speed of 5.0 m/s as the ball passes through the lowest point of its swing, and then gives the ball no further assistance . friction and air resistance are negleigable . what speed Vf does the ball have when the cable makes an angel of 20deg with respect to the vertical?
please help
E1-E0=Ww
where E0 is the kinetic energy of the ball at the lowest point of it’s swing at velocity (v0)
E1 is the kinetic energy when the cable makes an angel of 20deg with the vertical at velocity (v1)
Ww is the work done on the ball by the force of it’s weight (w) between the points 1 and 2
(1/2).m.v1^2 – (1/2).m.v0^2 = m.g.h
where h is the vertical displacement of the ball h=L.(1-cos(theta))
L is the length of the cable , theta is the angle between the two points (1 and 2)
after fixing and isolating v1 =>
v1 = ( 2.g.L.(1-cos(theta)) – v0^2 ) ^ 1/2
fmage]
Wally Gator, Swinging Operator of the Swamp!