The position vector of a moving particle in space is given by the vector equation . When will the speed of the particle be 4 units?
A) t = 6 and t = -2
B) t = 0
C) t = -6 and t = 2
D) t = 6
E) t = 2

Question

The position vector of a moving particle in space is given by the vector equation  . When will the speed of the particle be 4 units?
A) t = 6 and t = -2 
B) t = 0 
C) t = -6 and t = 2 
D) t = 6 
E) t = 2

Quizplus · Accepted Answer

The Answer of The position vector of a moving particle in space is given by the vector equation  . When will the speed of the particle be 4 units?
A) t = 6 and t = -2 
B) t = 0 
C) t = -6 and t = 2 
D) t = 6 
E) t = 2

The Position Vector of a Moving Particle in Space Is