A force applied to a 50 kg box on a level floor is just enough to start it moving. The coefficients of static and kinetic friction are, respectively, 0.5 and 0.3. If the same force continues to be applied to the box, it will have an acceleration of approximately (g = 10 m/s 2 )
Text Solution
Verified by ExpertsThe correct answer is:
A
Force required to move box F > 250 N
Minimum force needed = 0.5 × 50 × 10 = 250 N
250 N – 150 N = ma
a = 2m/s 2
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