Question
Physics Question on Motion in a straight line
In the case of a moving body, pick the correct statement
A
if velocity changes, speed also changes with some acceleration
B
if velocity changes, speed may or may not change but acceleration does change
C
if speed changes with change in direction, velocity does not change.
D
if speed changes without change in direction, the velocity may remain constant.
Answer
if velocity changes, speed may or may not change but acceleration does change
Explanation
Solution
Remember that change in velocity may be due to change in direction with or without change in magnitude