1) A soccer player runs 75m in a straight line down a soccer field in 11 seconds. What was her average speed? 2) An elephant can run at a steady speed of +10 m/s and can stop in 2.5 s. What is the average acceleration of the elephant while stopping? 3) What distance in meters will an ant cover in 1.0 hour if it maintains an average speed of 1.0 cm/s? 4) What is the average speed in kilometers per second of the Earth around the Sun given that the radius of the Earth's orbit is 1.5108 km1.5108 km ? 5) Same situation as in #4: What is the average velocity of the Earth over a year's time? 6) A football player running at a speed of 9.0 m/s hits the goalpost and comes to a stop in 0.050 seconds. Calculate his acceleration and compare it with that of gravity. 7) How fast will a motorcycle be going after accelerating from rest for 3.5 seconds if that motorcycle produces an acceleration of 7.5 ms2/7.5 ms2 ? 8) What is the final speed of a bicyclist initially moving at 10.0 m/s who accelerates at a rate of 1.5 ms2/1.5 ms2 for 3.00 seconds