As shown in figure, a $70\,kg$ garden roller is pushed with a force of $\overrightarrow{ F }=200\,N$ at an angle of $30^{\circ}$ with horizontal. The normal reaction on the roller is $.......\,N$ $\left(\right.$ Given $\left.g =10\,m s ^{-2}\right)$
$800 \sqrt{2}$
$600$
$800$
$200 \sqrt{3}$
Out of contact force and field force which force is conservative and which force is nonconservative ?
What was mistake in Aristotle’s idea regarding motion ?
In the figure, the tension in the horizontal cord is $30\,N$. Find the weight of the body $B.$ ............ $N$
Adjoining figure shows a force of $40\, N$ acting at $30^o$ to the horizontal on a body of mass $5 \,kg$ resting on a smooth horizontal surface. Assuming that the acceleration of free-fall is $10\, ms^{-2}$, which of the following statements is (are) correct?
$[1]$ The horizontal force acting on the body is $20\, N$
$[2]$ The weight of the $5\, kg$ mass acts vertically downwards
$[3]$ The net vertical force acting on the body is $30\, N$
Which of the following is the correct order of forces