- #1
Chandasouk
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- 0
Homework Statement
In a physics lab experiment, a 6.25 kg box is pushed across a flat table by a horizontal force F
If the box is moving at a constant speed of 0.400 m/s and the coefficient of kinetic friction is 0.120, what is the magnitude of F?
What is the magnitude of F if the box is speeding up with a constant acceleration of 0.160 m/s^2?
How would your answer to part (A) change if the experiments were performed on the moon, where g_m = 1.62 m/s^2?
How would your answer to part (B) change if the experiments were performed on the moon, where g_m = 1.62 m/s^2?
For part A, I found the weight of the block which was -61.25N and since it is on a horizontal plane Fn=mg, so Fn = 61.25N
I used the mew k being 0.120 and did
(.120)(61.25N) = 7.35N
What am I supposed to do with the constant speed it gives me? I know if something moves with a constant speed/velocity, the net force is zero...