What it handles
Kinematics & motion
Velocity, acceleration, projectile paths — with the equation it picked and why it fits your setup.
Forces & energy
Free-body diagrams, Newton's laws, work-energy problems broken into the steps your professor wants.
Circuits & fields
Ohm's law, series and parallel resistance, capacitors, electric and magnetic field questions.
Waves & thermo
Frequency, wavelength, sound, gas laws and heat transfer, unit conversions included.
A real worked example
Question
A ball is thrown straight up at 20 m/s. How high does it go? (g = 9.8 m/s²)
Answer
About 20.4 meters
Steps
- 1At the highest point the ball stops, so final velocity v = 0.
- 2Use v² = v₀² − 2gh with v₀ = 20 m/s.
- 30 = 400 − 2(9.8)h → h = 400 / 19.6.
- 4h ≈ 20.4 m above the throwing point.