Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
The scalar projection of vector
a
⃗
\vec{a}
a
on vector
b
⃗
\vec{b}
b
is a)
∣
a
⃗
∣
sin
θ
|\vec{a}|\sin\theta
∣
a
∣
sin
θ
b)
a
⃗
⋅
b
⃗
∣
a
⃗
∣
\dfrac{\vec{a}\cdot\vec{b}}{|\vec{a}|}
∣
a
∣
a
⋅
b
c)
a
⃗
⋅
b
⃗
∣
b
⃗
∣
\dfrac{\vec{a}\cdot\vec{b}}{|\vec{b}|}
∣
b
∣
a
⋅
b
d)
∣
b
⃗
∣
cos
θ
|\vec{b}|\cos\theta
∣
b
∣
cos
θ
Browse the problem library