A stone is dropped from a height of 45 m (g = 9.8 m/s^2, no air resistance). It reaches the ground after:

  1. 1.52 s
  2. 3.03 s
  3. 4.29 s
  4. 6.06 s
Answer

B) 3.03 s

h = 12gt^2 Rightarrow t = 2hg = 2(45)9.8 = 3.03 s. SLO P-11-B-04 · Application

Physics MCQ · More Kinematics and Projectile Motion MCQs · Practise