10- Suppose you throw a ball vertically downward with a speed of 10 m/s. Neglecting air friction, what would be the speed of the ball one second later

24.8 m/s

19.8 m/s

15 m/s

9.8 m/s^2

-9.8 m/s^2

13- An object rises at 5.0 m/s under the influence of gravity only. One second later the object is

falling at 4.8m/s.

neither rising nor falling.

rising at 5m/s.

rising at 4.8m/s.

17 A block of mass 2.5 kg is acted upon by a single force, producing an acceleration of 2.0 m/s ². The force has a value of

0.5 N.

2.5 N.

10 N.

5.0 N.