Question Detail
Question
In the example with a 6 kg block on a horizontal surface and a 4 kg hanging block, what is the normal force (R or F_N) acting on the 6 kg block? (Take g = 10 m/s²)
Correct Answer
Option B is the correct answer.
Detailed Explanation
The 6 kg block is on a horizontal surface. The normal force equals its weight, which is mass * g = 6 kg * 10 m/s² = 60 N. This value is used in the calculation (μR = 0.5 * 60).
Hint
On a horizontal surface with no vertical acceleration, the normal force is equal to the weight of the block.