The circular head of a screw gauge is divided into 70 divisions. The screw moves 1.4mm ahead in two revolutions of the circular head. While measuring the diameter of a wire the main scale reads 3 mm and 66th division is in line with the base line. Find the diameter of the wire assuming no zero error. 4.47 mm 0.047 cm 3.66 mm 0.036 cm Two masses 20 kg and 35 kg are placed on one side of the plank at distance 1.5 m and 3 m respectively from the middle as shown in figure. Where should a box of 50 kg be placed to balance it?
The circular head of a screw gauge is divided into 70 divisions. The screw moves 1.4mm ahead in two revolutions of the circular head. While measuring the diameter of a wire the main scale reads 3 mm and 66th division is in line with the base line. Find the diameter of the wire assuming no zero error. 4.47 mm 0.047 cm 3.66 mm 0.036 cm Two masses 20 kg and 35 kg are placed on one side of the plank at distance 1.5 m and 3 m respectively from the middle as shown in figure. Where should a box of 50 kg be placed to balance it?
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plz answer both part
Transcribed Image Text:The circular head of a screw gauge is divided into 70 divisions. The screw
moves 1.4mm ahead in two revolutions of the circular head. While
measuring the diameter of a wire the main scale reads 3 mm and 66th
division is in line with the base line. Find the diameter of the wire assuming
no zero error.
4.47 mm
0.047 cm
O 3.66 mm
0.036 cm
Two masses 20 kg and 35 kg are placed on one side of the plank at
distance 1.5 m and 3 m respectively from the middle as shown in figure.
Where should a box of 50 kg be placed to balance it?
35 kg
20 kg
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