Question

16. Friction can be reduced by -
(a) using streamlined shapes (b) making rough surface () using sand and gravel (d) using spikes
Ans:​

Answer 1

$\huge\mathcal{\fcolorbox{lime}{black}{\blue{AnsweR:-}}}$

➣❶Using spikes

Answer 2

Answer:

Friction can be reduced by making rough surface

Explanation:

Hope it helps you