Question

At a certain instant an object has the following velocity components: v¬¬x = 300 m/s, vy ¬¬= 400 m/s. What is the speed of the object at that instant? What is the velocity of the object in terms of the unit vectors î and ĵ?

Answer 1

speed = magnitude of velocity = sqrt[vx^2 + vy^2]
v = (300. 400)