Force of NewtoNN

Classical Mechanics Level 1

force of 6N act on a body at rest and mass 1kg. during the time the body attains a velocity of 30m/s. the time for which the force act on the body is. (in seconds)

5 7 8 10

Pratik Raj by Pratik Raj , 22, India

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4 solutions

Tushar Malik
Aug 16, 2014

calculate a by f=ma and then find time by v=u+at

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Ivet Kaih
Jul 30, 2014

F= m×a, v=a×t. And we got the answer

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by us f=ma, t=v/a

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By the formula F=ma. by this formula we find accelation. after we use V=U+at. here u=0,v=30,and accelation is 6,so time taken is 5 sec

Ruman Hasan - 6 years, 11 months ago
Yogesh Ghadge
Jul 4, 2014

F=m a = kg * m/s^2 =kg * m/s *1/2 = 1 30 * 1/s Now 6N = 30*1/s s=30/6=5

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