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A block of mass 1kg is suspended by a string of mass 1 kg, length 1m as shown in figure. calculate a) the tension in the string at its lowest pointb) the tension in the string at its mid pointc) force exerted by support on strong​

Answer»

tension in the string at the lowest point: 10 Nb) The tension in the string at its mid point: 15 Nc) FORCE exerted by support on strong: 20 NExplanation:Mass of the block=1kg Mass of the string=1kg Length of the string=1meter We can take g=1m/s^2 To find: • The tension of the string at the lowest point • The tension of the string at the mid-point • Force exerted by support on the string FORMULA used: T=mg Solution: • To find the tension of the string at the lowest point we calculate by using the values • T=mg • 1 x 10=10N • The tension of the string exerted at the midpoint  • Total mass=(1+0.5)kg+1.5kg • Therefore the tension at the MIDDLE of the string is 15N • Force exerted by support on the string is  total mass=1+1=2kg • Tension=2 x 10=20N



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