Question

a child pushes his friend in a wagon along a horizontal road and then lets go The wagon rolls for 10.0 second before stopping. It travel a distance of 20 cm during the last 1.00 s of its motion. Assuming uniform acceleration. A) how fast was the wagon travelling at the instant the child released it ? B) HOW FAST WAS THE WAGON TRAVELLING WHEN IT HAD COVERED HALF OF THE TOTAL DISTANCE