Question

An object starts moving with an initial speed 10 m/s and acceleration 2 m/s2 along positive x-direction. The time taken to attain 60 m/s speed is?

• A. 25 S
• B. 20 S
• C. 30 S
• D. 15 S

Answer 1

Answer: (A)

25 S

Answer 2

The correct option is (A): 25 S
$v = u + at$
$60 = 10 + 2t$
$2t = 50$
$t= 25$ s