5 Physics Tricks to Solve Numericals in Seconds

In MDCAT Physics, you don't get marks for the 'steps'. You only get marks for the right bubble.

1. The 'g' Approximation

Never use g = 9.8. Always use g = 10. The difference in the final answer is usually small enough that you can still pick the closest option.

2. Dimensional Analysis

Forgot the formula? Look at the units of the options.
If the answer is in Joules (N.m), and you are given Force (N) and Distance (m), just multiply them!

3. The 3-4-5 Triangle

In vectors or projectiles, if you see components of 3 and 4, the resultant is ALWAYS 5. Don't waste time calculating the square root of 3² + 4².
(Multiples work too: 6-8-10, 30-40-50).