The position vector of an object is given by and 4 s later, its position vector is . The units are in m. The magnitude of the change in the position vector is
A) 0 m
B) m
C) m
D) 10 m
E) m

Question

The position vector of an object is given by  and 4 s later, its position vector is  . The units are in m. The magnitude of the change in the position vector  is
A) 0 m 
B) m 
C) m 
D) 10 m 
E) m

Quizplus · Accepted Answer

To find the magnitude of the change in position vector, we need to take the difference between the two position vectors given:
11eaa4be_83b6_869d_9e4a_0b3bbbfe3049_TB6080_11 - 11eaa4be_83b6_5f8c_9e4a_154589a8cf37_TB6080_11 = 11eaa4be_83b6_adb0_9e4a_b153cd9ab97e_TB6080_11
The magnitude of this vector is equivalent to its length, which is approximately 10. The correct answer choice is C.

The Position Vector of an Object Is Given by