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A bus moving along a straight line at 15 m/s undergoes an acceleration 2.5 m/s2 . After 2 seconds,its speed will be,
- a)20 m/s
- b)26 m/s
- c)25 m/s
- d)30 m/s
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A bus moving along a straight line at 15 m/s undergoes an acceleration...
To find the final speed of the bus after 2 seconds, we can use the formula:
\[v = u + at\]
where:
v = final speed
u = initial speed
a = acceleration
t = time
Given:
u = 15 m/s
a = 2.5 m/s²
t = 2 s
Substituting the given values into the formula, we have:
\[v = 15 + 2.5 \times 2\]
Simplifying the equation:
\[v = 15 + 5\]
\[v = 20\]
Therefore, the final speed of the bus after 2 seconds is 20 m/s.
The correct answer is option A.
\[v = u + at\]
where:
v = final speed
u = initial speed
a = acceleration
t = time
Given:
u = 15 m/s
a = 2.5 m/s²
t = 2 s
Substituting the given values into the formula, we have:
\[v = 15 + 2.5 \times 2\]
Simplifying the equation:
\[v = 15 + 5\]
\[v = 20\]
Therefore, the final speed of the bus after 2 seconds is 20 m/s.
The correct answer is option A.
Community Answer
A bus moving along a straight line at 15 m/s undergoes an acceleration...
v = u + at
=20 m/s.
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A bus moving along a straight line at 15 m/s undergoes an acceleration 2.5 m/s2 . After 2 seconds,its speed will be,a)20 m/sb)26 m/sc)25 m/sd)30 m/sCorrect answer is option 'A'. Can you explain this answer?
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