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A m = 3.50-kg mass swings as a pendulum on a 32.5 m long string. (a)...

A m = 3.50-kg mass swings as a pendulum on a 32.5 m long string. (a) The mass is released from rest when the string is at an angle of 40.0° from the vertical. Find its speed at the bottom of the swing. m/s (b) What would be the speed the mass at the bottom of the swing if it had a speed of 6.00 m/s when the string is at an angle of 40.0° from the vertical. m/s

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Case-1 l Los40 40° h = l (1-coso) A B reference JB Potential Energy at A= kinetic Energy at B 2 =) & mgl (1-cose) = mg / m Vo

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