Question 105: 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 $\mathrm{g=10~m~s^{-2}}$)
![](https://app-content.cdn.examgoal.net/fly/@width/image/1ldq05cb3/91a81a0a-30e8-4e92-b28b-291e638a7f71/635261f0-a491-11ed-8eb4-ef270ed2fedb/file-1ldq05cb4.png?format=png)

Accepted Answer

Normal reaction $=70 \mathrm{~g}+F \cos 60$
$=700+100$
$=800 \mathrm{~N}$
![](https://app-content.cdn.examgoal.net/fly/@width/image/1leh0u58l/63fb31bc-c340-49a5-b1ad-c6fa5edad65d/3e9fa350-b36d-11ed-b3df-835881d68206/file-1leh0u58m.png?format=png)

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: