Multiple Choice
A particle moves east at constant velocity for a time interval DT.It then moves north at a constant velocity,with the same speed as before,for another time interval DT.Finally it moves east again with the original velocity.At the instant an additional time interval DT has elapsed,which of the following are true about the average velocity and the average acceleration for the motion described?
A) The average velocity is and the average acceleration is zero.
B) The average velocity is and the average acceleration is not zero.
C) The average velocity is not and the average acceleration is zero.
D) The average velocity is not and the average acceleration is not zero.
Correct Answer:

Verified
Correct Answer:
Verified
Q18: A fireman,50.0 m away from a
Q19: A student adds two vectors with magnitudes
Q20: A string attached to an airborne
Q21: A helicopter is traveling at 40 m/s
Q23: A boat moves at 10.0 m/s relative
Q24: A taxicab moves five blocks due north,five
Q25: Four vectors all have the same
Q26: A projectile is launched at an angle
Q27: A track star in the broad
Q52: In a 2-dimensional Cartesian coordinate system the