1.

A force of 72 dyne is inclined to the horizontal at an angle of 60°. Find the acceleration in a mass of 9 g, which moves in a horizontal direction.

Answer»

Component of force along horizontal,

Fx = F cos 60°

= 72 x \(\frac{1}{2}\) = 36 dyne

Using, Fx = max

we get, ax\(\frac{F_x}{m} = \frac{36}{9}\)

= 4 cms-2



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