What are some common mistakes students make with velocity?
1 Answer
May 27, 2018
See Explanation.
Explanation:
 Student are always confused in velocity and speed.
 Mostly students assume velocity as scalar quantity not as vector quantity.
 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.  Students cannot differentiate between speed and velocity.

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. 
Student are unknown that speed is modulus of velocity.
Speed = IVelocityI 
Student may get wrong with the basic of the 2D motion.