Question

What are some common mistakes students make with velocity?

Answer 1

See Explanation.

Explanation:

1. Student are always confused in velocity and speed.
2. Mostly students assume velocity as scalar quantity not as vector quantity.
3. If someone states that a object has velocity `-5 m/s` has significance but; if someone states that a object has speed `-5 m/s` does not posses significance. Students cannot understand that.
4. Students cannot differentiate between speed and velocity.

5. While applying the equations,
   `v=u+at`
   `v^2=u^2+2as`
   Students generally do not check whether velocity is zero at any time or not.

6. Student are unknown that speed is modulus of velocity.
   Speed = IVelocityI

7. Student may get wrong with the basic of the 2-D motion.