A resultant force of 4 N acts on a object of mass 0.50 kg for 3 seconds. What is the change in velocity caused by this force? A- 4 m/s
B- 6 m/s
C- 12 m/s
D- 24 m/s
It’s D but why?

24

Explanation:

First you need to calculate the acceleration, for this use can use the following formula Force (F) = Mass (M) x Acceleration (A). If we extract A out of this, you can get the following equation A = F/M = 4/0.5 = 8 m/s^2. So, the object accelerates each second by 8 m/s, if the object does this for 3 second, the velocity would be 8 x 3 = 24

the answer would be 32*f

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s