Please answer both Questions. Thanks! A.) The velocity vector V 1 has a magnitud
ID: 1530177 • Letter: P
Question
Please answer both Questions. Thanks!
A.) The velocity vector V1 has a magnitude of 3m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2m/s. The sum of the two is V3, so that V3 = V1+V2
(For each statement select T-True, or F-False; If the first is True and the rest F, enter TFFFFF).
A) The magnitude of V3 can be 6m/s
B) The x-component of V3 can be 3m/s
C) The magnitude of V3 can be 1m/s
D) The magnitude of V3 can be -2m/s
E) The magnitude of V3 can be 0
F) The magnitude of V3 can be 5m/s
B.) Which of the following statements is true? (Give all correct answers, i.e., A, C, AE, ABCD . . .)
A) Acceleration and velocity are always in the same direction.
B) An object can have a zero velocity and still be accelerating.
C) When the velocity is constant, the average velocity over any time interval does not differ from the instantaneous velocity at that instant.
D) The velocity of an object can reverse direction when its acceleration is constant.
E) If the vector sum of two velocities is zero, then the magnitudes of those two velocities are equal.
Explanation / Answer
(A)
FTTFFT
The resultant vector magnitude never exceeds the sum of the magnitude of the individual vectors.
maginitude of a vector never be negative.
two non equal vectors never gives the zero resultant.
the magnitude of resultant vector of to vectors can be equal to the difference of the magnitude of the individual vectors.
if the vector V2 acts vertical direction, then V1 becomes the x-component of the resultant vector.
(B)
FTTTT