NCERT Solutions for Class 11 Science Newton’s law of motion and friction 3

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Newton’s law of motion and friction

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# A force of 36 dynes is inclined to the horizontal at an angle of 60°. Find the acceleration in a mass of 18 g that moves in a horizontal direction.

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F = 36 dyne at an angle of 60°

Fₓ = F cos 60° = 18 dyne

Fₓ = maₓ

So aₓ = Fₓ/m = 1 cm/s²

F=36 dyne at an angle of 60°

Fx = F cos 60° =18 dyne

Fx = max

So ax=Fx/m = 1 cm/s²