0 16 Q 17 Q 18 A fireman wants to side down a rope The rope

Last updated: 6/21/2023

0 16 Q 17 Q 18 A fireman wants to side down a rope The rope can Q 21 Two objects A and B of masses mA and mi attached by strings as shown in fig If they are g upward acceleration then the ratio of tension T hear a tension of th of the weight of the man With what minimum acceleration should the fireman slide down 1 2 A rope of mass 5 kg is moving vertically in vertical position with an upwards force of 100 N acting at the upper end and a downwards force of 70 N acting at the lower end The tension at midpoint of the rope is 2 85 N 1 100 N 3 75 N 4 105 N 1 1SF 3H6F A body is moving with a speed of I m s and a force F is needed to stop it in a distances If the speed of the body is 3 m s the force needed to stop it in the same distance will be My sin 0 2 3F 4 9F Masial 9 Q 19 Two blocks each having mass M rest on frictionless marfaces as shown in the figure If the pulleys are light and frictionless and M on the incline is allowed to movie down then the tension in the string will be Se freed ra 2 Me sin 0 4 2 My sin 12 Q 20 Two mines are hanging vertically over frictionless pulley The acceleration of the two masses is Q 22 Q 23 Q 24 1 mA mB mB 2 mA mBymA m m m m Me m A monkey of mass 20 kg is holding a vertical rope The rope can break when a mass of 25 kg is suspended from it What is the maximum acceleration with which the monkey can climb up along the rope 1 7 ms 2 10 ms 4 2 5ms 3 5 ms A body of mass 8 kg is hanging from another body of mass 12 kg The combination is being pulled by a string with an acceleration of 2 2 ms The tension T and T will be respectively use g 9 8m s 1 200 N 80 N 31240 N 96 N 12kg T the Sky 2 220 N 90 N 4 260 N 96 N At a given instant A is moving with velocity of 5 m upwards What is velocity of B at the time m Q