Question: A ball is thrown vertically upward with a velocity of 20 ms-1.Find Solution: Thrown up- Sign convention https://shopify.pxf.io/c/4884043/1295413/13624 (a) Distance travelled by the ball in first three seconds When a ball is thrown vertically upward, the velocity at its highest point is zero (v=0) Here initial velocity of the ball (u) =20 ms-1 Hence…