B. 10.3 s {Ans: 3. A stone is thrown vertically upward with velocity 40 m/s at the edge of a cliff having a height of 110 m. Neglecting air resistance, compute the time required to strike the ground at the base of the cliff.}A. 16. 27 sec. {Ans: 15. Two cars A and B traveling in the same direction and stopped at a highway traffic sign. As the signal turns green car A accelerates at constant rate of 1 m/s2. Two seconds later the second car B accelerates at constant rate of 1.3 m/s2. When will the second car 8 overtakes the first car A?}C. 3.2 s {Ans: 6. A ball is thrown directly downward with an initial speed of 15 m/s coming from a height of 100 m. In how many seconds will the ball hit the ground ?}B. 54 {Ans: 2. The distance a body travels is a function of time and is given by x(t)=18t+9t^{\wedge_{2}} . Find its velocity at t=2}A. 3m {Ans: 4. A car undergoes a constant acceleration of 6.0 m/s² starting from rest. In the first second it travels}B. 70. 34 {Ans: 11. A rock is dropped into