Answer to Question #254731 in Physics for Jho

Question

an object moves in a straight line northward at a speed of 5m/sec .and its speed reaches 20m/sec . through 3seconds (a)the velocity after 3 seconds

Answer 1

$$a=\frac{20-5}{3}=5\frac{m}{s^2}\\V=20+5(3)=35\frac{m}{s}$$