Question

sahil tries to pull a box mass of 50 kg placed on a smooth surface but could not move it. he then placed the box at an array of cylindrical rods and moved the box comfortably.
1) define the force of friction acting in both cases?
2)why it is easier to move box in second case ?
please hurry​

Answer 1

Answer:

Explanation:

2) in the smooth surface the friction is less so its difficult to pull the box.

but in an array surface friction is high so its easy to pull the box

1)

Answer 2

1..static friction and Rolling friction (definition).

2..It is easier because rolling friction is less than static friction.