8) A dragster can accelerate from rest and go one-quarter of a mile (440m) while reaching a speed of 150 m/s. Determine: a) the dragster's acceleration b) the time it takes the dragster to travel the one-quarter mile 9) A bowling ball rolls 20m at a steady speed of 12 m/s. How long did this motion take? 10) An object moving at 12 m/s accelerates at 6 m/s2 until it travels 63 m. Determine: a) the object's average speed b) the time required for this journey 1 1) A bullet is fired from a rifle with a speed of 300 m/s. If the barrel of the rifle is 0.7m long, determine the acceleration of the bullet. (yes, you have enough information to figure this out!) 12) Objects A and B start from rest. Object A accelerates for 4 seconds. Object B accelerates at the same rate for 8 seconds. How many times further does object B go as compared to object A? Justify your answer mathematically! 13) An object starts from rest and speeds up to 20 m/s in 4 sec. How far does it travel during this time? 14) A car going 7 m/s accelerates at 3 m/s for a time of 5 sec. a) how far does it travel? b) what is its final speed? C) what is its average speed