Question

An object has an initial velocity of 15 m/s. How long must it accelerate at a constant rate of 3. 0 m/s² before its final velocity is equal 30 m/s?.

Answer 1

Answer: 5 sec

Step-by-step explanation:

30 = 15 + (3*t)

so, t=(30-15)÷3

= 5 sec