CBSE Class 11 c11phy_lom_friction_circ — practice questions
12 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 c11phy_lom_friction_circ in the app →Per NCERT §4.9.1, the maximum STATIC friction force on a block on a horizontal surface obeys which inequality?Per NCERT §4.9.1, KINETIC (sliding) friction is approximately given by which relation?Per NCERT §4.9.1, the coefficients of static and kinetic friction satisfy which order?Per NCERT Example 4.7, the MAXIMUM acceleration of a train such that a box on its floor (μ_s = 0.15) remains sPer NCERT Example 4.8 (inclined plane), if a mass just starts to slide at angle θ = 15°, the coefficient of stPer NCERT §4.9.1 (rolling friction note), among rolling, sliding (kinetic), and static friction, which is typiPer NCERT §4.10 eqn 4.16, the CENTRIPETAL force needed for a body of mass m moving at speed v in a circle of rPer NCERT §4.10 eqn 4.18, the maximum speed of a car on a LEVEL circular road of radius R is which?Per NCERT §4.10 eqn 4.22, the OPTIMUM speed (no friction needed) on a banked road of angle θ is which?Per NCERT §4.10 eqn 4.21, the MAXIMUM speed on a banked road (with friction μ_s) is which expression?Per NCERT Example 4.10, a cyclist taking a R=3 m turn at 18 km/h (μ_s = 0.1) is in which condition?Per NCERT Example 4.11, a R=300 m banked-at-15° racetrack with μ = 0.2 has optimum speed approximately which v