AP EAMCET · PHYSICS · Motion In One Dimension
Which of the following decreases, in motion on a straight line, with constant retardation?
- A Speed
- B Acceleration
- C Displacement
- D Distance
Answer & Solution
Correct Answer
(A) Speed
Step-by-step Solution
Detailed explanation
Using the equation of uniform motion v=u+at Here, v is final speed, u is initial speed and a is the acceleration for time t. Now, there is constant retardation in motion,i.e., acceleration=-a Therefore, v=u+-atv=u-at∴v<u Hence, the speed of the body will…
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