the sum of first 9 terms of an arithmetic sequence is 45 and the sum of the first 18 x is 171 find the 5th term
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Which of the following cases the net force acting on the body is not zero
a. A drop of train falling down with a constant speed
b. A crock of mass 10g floating on the surface of water.
c. A car moving with a constant speed of 20km/h on a rough road.
d. A pebble of mass 0.05kg is thrown vertically upwards.
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5
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