Question

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A force 1.ON acts on body of mass 10 kg. As a result the body covers 100 cm in 4 seconds moving along
a straight line. It's initial velocity is

a) 0.5 cms - 1
c) 50 cms-
b) 5 cms -1
d)5 cms
​

Answer 1

Answer:

a = F/m = 1.0N / 10kg = 0.10m/s²

S = ut + ½.at²

100 = (u4) + (½*0.10*16)

100 - 0.80 = 4u .. .. u = 99.20 / 4 = 24.8 cm/s !!

♦♦ If F=10N ..and .. m=1kg .. .. then a=10/1 = 10.0m/s²

100 = (u4) + (½*10*16)

100 - 80 = 4u .. .. u = 20/4 = 5 cm/s

Answer 2

Answer:

0.5 cms - 1

Explanation:

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