Question 82: Laws of Motion

Question

As shown in figure, a $$70 \mathrm{~kg}$$ garden roller is pushed with a force of $$\vec{F}=200 \mathrm{~N}$$ at an angle of $$30^{\circ}$$ with horizontal. The normal reaction on the roller is
(Given $$\mathrm{g=10~m~s^{-2}}$$)

Accepted Answer

Normal reaction $=70 \mathrm{~g}+F \cos 60$
$=700+100$
$=800 \mathrm{~N}$

Answer

800 N

Answer

600 N

Answer

200$$\sqrt3$$ N

Answer

800$$\sqrt2$$ N

Laws of Motion

As shown in figure, a $70 \mathrm{~kg} garden roller is pushed with a force of \vec{F}=200 \mathrm{~N} at an angle of 30^{\circ} with horizontal. The normal reaction on the roller is (Given \mathrm{g=10~m~s^{-2}}$)

Choose the correct answer: