Question

a body moving along a straight line at 30 m/s undergoes an acceleration of -5m/s^2 after 2 second its speed will be

Answer 1

use the values in the eqn and Walla u get it

Answer 2

Answer: 20 m/s

Explanation:

• u=30 m/s
• a=-5 m/s^2
• t=2 sec
• v=u+at
• v=30+(-5)*2
• v=30-10
• v=20 m/s