A sled slides without friction down a small, ice covered hill. If the sled starts from rest at the top of the hill, its speed at the bottom are 7.50 m/s. A) On the second run the sled starts with a speed of 1.50m/s at the top. When it reaches the bottom of the hill is its speed 9.00 m/s, more than 9.00m/s, or less than 9.00m/s. Explain. B) Discover the speed of the sled at the bottom of the hill after the second run.