Urgent help

A boo hangs by a light string from a cieling of a moving train car the string makes an angle of 0 31 with the vertical as shown, the acceleration of car is equal for 16 milo? to the left ( 16mls ? to the right direction 10) 519 mis ? to the left of motion to the right ( 15.) A 140o ky car travels at uniform speed on a flat circular wrack of vadius 20 m and takes uts to complete a pround trip. the coefficient of static friction between the lives and the road is 0.51 . cav experiences a force static friction of magnitude . 2:0 KN (61 5.0 KN (0) 7.0 KN ( 0) 12 KN 14 KN ( 16) A 50 kq girl rides the Niagara Sky wheel, which has 1 0 diameter of 50 m. The vertical wheel completes 8 revolutions in 10 minutes ride . The normal force on the girl when her seat is at the bottom ( pointB) of the ride is equal for 8.8N d1 50 0N () 520 N Two forces of equal magnitude (F = 36 N ) act on a 36 kq block on a smooth horizontal table as shown in diagram . The acceleration of the block is equalfor 1. om 152 2. 0m /5 2 1 .6 m 15 2 36 'd 1. 8 m /5 2 36 kg (e) 8:0 mls 2 12 A light string support a box of mass got on 30" inclined surface as shown in diagram The colfficient of static and kinetic friction blw the box and the incline are 0.50 and 0.40 respect. the tension in the string is equal to v 5 . 9 N (6 14 N () 36 N LOV HUN 130 * ) 82 N 13 A block of mass 8.0 ky sits on a lookg block on a smooth tabletop , where the coefficient of static . friction blu the two blocks is a yo . The heavier block is connected by a string over a light pulley to a ranging sphere . the max . mass of the sphere for which the two blocks move as one unit , without sliding against each other is equal for ( 0) 2:0 kq (6) 7:2 Kg 104/9 12 kg 18 kg M ( e) 24 kg