I will get questions like these in my exam. Please show me how you got the answer. THANK YOU!!!

1) An aircraft touches down on a runway at 73 m.s−1 and immediately begins to brake with a deceleration of 3.9 m.s−2. After it has travelled a distance of 440 m from the point of touchdown its velocity will be nearest to:

44 m.s−1

94 m.s−1

69 m.s−1

59 m.s−1

14 m.s−1

2) A freight train accelerates at a constant rate from rest and covers a distance of 150 m in 44 s. The acceleration of the train is nearest to:

0.039 m.s−2

1.705 m.s−2

6.453 m.s−2

0.155 m.s−2

3.409 m.s−2

3) A road train consists of a truck and 4 trailers and has a total length of 52 m. It is travelling along a straight stretch of road at 30 m.s−1 (approx 108 kph) when a car travelling at 33 m.s−1 (119 kph) approaches from behind. The car pulls out to pass when it is 10 m behind the back of the road train and then pulls back in after passing it when it is 10 m in front of the road train. The total distance covered by the car while it is overtaking is nearest to:

720 m

572 m

72 m

682 m

792 m

4) A ship sails 54 km 35° West of North and then alters course and sails 71 km 55° South of West. The magnitude of its displacement from the starting point is nearest to:

17 km

73 km

63 km

103 km

125 km