Physics homework help, one step at a time

1. Choose Physics and type the question, or write it on the whiteboard.
2. Say where you're stuck: "I don't understand the question", "I don't know how to start", or "check my answer".
3. The tutor explains one step and asks you to try the next one.
4. It checks your working and points to the first step that went wrong, if any.
5. Ask for a similar question to make sure you can do it on your own.

A 1,200 kg car accelerates from rest to 20 m/s in 8 s. What is the resultant force?

1. What do you know? $m = 1200$ kg, $u = 0$, $v = 20$ m/s, $t = 8$ s.
2. Which equations link them? Acceleration first: $a = \dfrac{v - u}{t} = \dfrac{20}{8} = 2.5$ m/s².
3. Then Newton's second law: $F = ma = 1200 \times 2.5 = 3000$ N.
4. Sense-check: 3,000 N for a car is reasonable.

The tutor asks you which equation to use at each step rather than telling you, and checks units as you go.

See our AI physics tutor and how to study physics.

• Write the equation before substituting: method marks are often given for it.
• Convert units first: grams to kilograms, minutes to seconds, kJ to J.
• Draw a diagram for forces and circuits on the whiteboard; it makes the next step clearer.

TutorAura explains each question properly: what it's asking, every step with the reason it works, and the answer. Then it gives you one like it to try on your own, so you can do the next question by yourself (and in the test, where there's no help). Prefer to work it out yourself? Switch on Guide me and it coaches you one step at a time. It won't write graded essays or written answers for you to hand in. Follow your school's rules on using AI for homework.