In diagram b, prove that the tension in the middle string is 3.3 n.
the mass=1kg
the force=10n

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

higher potential

explanation:

because it is in a high speed so it must move into a of high potential

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