Question
Question: In figure a block of weight 10 N is shown resting on a horizontal surface. The coefficient of static...
In figure a block of weight 10 N is shown resting on a horizontal surface. The coefficient of static friction between the block and surface is µs = 0.4. A force of 3.5 N will keep the block in uniform motion once it has been set in motion. A horizontal force of 3 N is applied to the block. The block will then –
A
Move over the surface with a constant velocity
B
Move having accelerated motion over the surface
C
Not move
D
First move with a constant velocity for sometime and then will have accelerated motion
Answer
Not move
Explanation
Solution
fl = 0.4 × 10 = 4N
Force < fl so particle will not move.