1. A train travelled at 30 m/s when the driver applies the brakes, producing a deceleration of 1 m/s2 for 20 s. a) What

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1 A Train Travelled At 30 M S When The Driver Applies The Brakes Producing A Deceleration Of 1 M S2 For 20 S A What 1 (64.83 KiB) Viewed 39 times

1. A train travelled at 30 m/s when the driver applies the brakes, producing a deceleration of 1 m/s2 for 20 s. a) What is the final speed of the train? b) How far does the train travel while the brakes are on? 2. A car can accelerate from rest to 100 km/h in 5.6 s. i. What is its acceleration in m/s2? ii. What is the distance travelled by the car in the first 5.6 s? 111. If the car keeps accelerating at the same rate, what is the time taken for the car to accelerate from 100 kmh to 150 km/h? 3. An object is projected vertically upwards with an initial speed of 43 m/s. Find: a) Its maximum height b) The time taken to reach its maximum point c) The time taken to return to its starting point. 4. An object is projected from the top of a building, which is 12 m above the ground with an initial speed of 15 m/s. If the object is fired horizontally, how far from the foot of the building will the object hit the ground? 5. A body projected upward from the level ground at an angle of 50' with the horizontal has an initial speed of 40 m/s. a) How long will it take to hit the ground? b) How far from the starting point will it strike?