AP EAMCET · PHYSICS · Motion In One Dimension
A body of mass \(10 \mathrm{~kg}\) has constant velocity of \(10 \mathrm{~m} \mathrm{~s}^{-1}\). A constant force is applied for a duration of \(4 \mathrm{~s}\) on the object and gives it a speed of \(2 \mathrm{~m} \mathrm{~s}^{-1}\) in opposite direction. Then, find acceleration produced in it.
- A \(3 \mathrm{~ms}^{-2}\)
- B \(-3 \mathrm{~ms}^{-2}\)
- C \(0.3 \mathrm{~ms}^{-2}\)
- D \(-0.3 \mathrm{~ms}^{-2}\)
Answer & Solution
Correct Answer
(B) \(-3 \mathrm{~ms}^{-2}\)
Step-by-step Solution
Detailed explanation
Mass of body, \(m=10 \mathrm{~kg}\) Velocity, \(v=10 \mathrm{~ms}^{-1}\) \(t=4 \mathrm{~s}\) Final velocity of the body, \(v=-2 \mathrm{~ms}^{-1}\) Since, final velocity of the body decreases on application of constant force, hence acceleration is negative. By first equation of…
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