Test your wits!


We constantly evaluate the academic prowess of students by engaging them intellectually through mind-drills. We provide thoughtful questions here, while welcoming solutions from students with high acumen. Kalculations always recognise the first learner that births the correct answer by profiling them on this page as the Brain-of-The-Month.

This is our little, but insightful way of iconising brilliant minds and honouring their commitment to learning. Ambitious pupils can always send the correct answers to any of our questions to brains@kalculations.com, or via the answer text boxes beneath.

Smart students are encouraged to resolve the question underneath.

Take Your Physics Question 1 Today

A ball is thrown vertically upwards from the ground with a velocity of 30m/s. Exactly 0.5 second later, another ball is dropped from rest from a cliff 40 metres above the point from which the first ball was projected. Find:
(i) The time after the first ball was thrown when the two balls meet.
(ii) How far above the ground are they at this time?

Name Email Phone Number

Tertiary Courses

  • Gas Dynamics
  • Fluid Mechanics
  • Engineering Mechanics
  • Engineering Thermodynamics
  • Engineering Mathematics
  • Heat and Mass Transfer
  • Automotive Engineering
  • Machine Design


  • SAT
  • Cambridge AS/A level
  • Edexcel AS/A level
  • Cambridge IGCSE
  • Edexcel IGCSE
  • Universities Pre-degree/Diploma
  • Common Entrance (Federal/State)/Nigerian