Question

Please give the answer of no-5 ,6

It's urgent don't spam pls​

Answer 1

Answer:

5) 40 N/M2(it's not in option bt pressure is N/M2 = 20/0.5

so it should be d) maybe there's a misprint

6) c) it reduces friction so as it can slide easily

hope it helps bruh

if found helpful mark it as brainiliest and follow plz

Answer 2

$\Large\textsf{5. )}$

$\LARGE\mathfrak{\underline{\underline{Solution :-}}}$

${\large\sf{Given}}\begin{cases} ↦ & \textsf{ Force exerted by the block = 20 N } \\ ↦ & \textsf{ Area on which the force is exerted = 0.5 m²}\end{cases}$

$\qquad\tt{:}\longrightarrow\boxed{\underline{\overline{\large\textsf\textcolor{purple}{ Pressure = \cfrac{\large\textsf{Force}}{\large\textsf{Area}} }}}}\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{ = \cfrac{\large\textsf{20}}{\large\textsf{0.5}} }\\\\\\\qquad\tt{:}\longrightarrow\large\textsf{ = \cfrac{\large\textsf{200}}{\large\textsf{5}} }\\\\\\\qquad\tt{:}\longrightarrow\boxed{\underline{\overline{\large\textsf\textcolor{red}{Pressure = 40N/m²}}}}$

➛ Note :- This answer is not in the options but , the answer is correct.

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$\Large\textsf{6. )}$

$\boxed{\underline{\overline{\large\textsf\textcolor{red}{Option C. ) }}}}$

• ball bearing is used in the drawer because it reduces friction.
• rolling is more efficent than sliding because
• rolling has wheels, which would mean the surface area that covers is lesser compared to sliding.
• when surface area is less, friction is less body moves smoothly.
• since friction is directly proportional to area.

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