M1 0.0 / 5 ? MathematicsMechanicsASEdexcel Created by: elacCreated on: 02-04-16 17:01 Smooth surface No friction 1 of 20 String is in-extensible String does not change length, so accelerations and velocities of both particles, attached, are equal 2 of 20 Pulley is smooth No friction, so tention is all parts of the string are equal 3 of 20 String/pulley is light Adds no weight to the system, so acceleration is constant throughout the motion 4 of 20 Air projectile q's Assume acceleration due to gravity is 9.8 (ignore air resistance) 5 of 20 Rod Straight and doesn't bend, all forces remain perpendicular 6 of 20 I= mv-mu 7 of 20 m1u1+m2u2= m1v1+m2v2 8 of 20 F= ma 9 of 20 W= mg 10 of 20 Fmax= μR 11 of 20 V^2= u^2+2as 12 of 20 ut+1/2at^2= S 13 of 20 vt-1/2at^2= S 14 of 20 S/t= (u+v)/2 15 of 20 V= u+at 16 of 20 Momentum= mass x velocity 17 of 20 Velocity time graphs: area under graph= Distance 18 of 20 When to use SUVAT When acceleration is constant 19 of 20 Velocity time graphs: slope= Acceleration 20 of 20
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