StreakPeaked· Practice

ExamsSSC CGL (Prelims)General

A ball is launched straight up with an initial speed of 10 m/s. Neglecting air resistance and taking g = 9.8 m/s^2, what is the greatest height it attains?

  1. 1.02 m
  2. 5.10 m
  3. 10.2 m
  4. 20.4 m

Correct answer: 5.10 m

Solution

At maximum height the final velocity is 0. Using v^2 = u^2 - 2gh gives h = u^2 / (2g) = 100/19.6 = 5.10 m. Hence the ball rises 5.10 m.

Related SSC CGL (Prelims) General questions

⚔️ Practice SSC CGL (Prelims) General free + battle 1v1 →