Home › AP EAPCET (Engineering) › Physics › Laws of Motion › A box stays at rest on a train floor with µs = 0…
A box stays at rest on a train floor with µs = 0.2. Maximum train acceleration? (g = 10)
A0.2 m/s²
B10 m/s²
C20 m/s²
D2 m/s²
Answer & Solution
Correct answer: D. 2 m/s²
Maximum friction gives a = µs g = 0.2 x 10 = 2 m/s².
Related questions
A book rests on a desk. Why are weight and normal force not an action-reaction pair?Two blocks of 2 kg and 3 kg touch on a smooth desk. A 10 N push gives acceleration?A block slides down a smooth 30 degree incline. Its acceleration? (g = 10 m/s²)The same lift accelerates down at 2 m/s². Normal force on the 60 kg person? (g = 10)A lift carrying a 60 kg person accelerates up at 2 m/s². Normal force? (g = 10)The maximum safe speed of a car on a level curve is independent of?A car on a level road has µs = 0.5 and turn radius 20 m. Maximum speed? (g = 10)What supplies centripetal force for a car turning on a level road?