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A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer?
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A bus decreases its speed from 80 km per hour to 60 km per hour in 5 s...
Acceleration Calculation:
Acceleration is the rate of change of velocity. It can be calculated using the formula:
\[
a = \frac{{v_f - v_i}}{{t}}
\]
Where:
a = acceleration
v_f = final velocity
v_i = initial velocity
t = time taken
Given:
Initial velocity (v_i) = 80 km/hr
Final velocity (v_f) = 60 km/hr
Time taken (t) = 5 seconds
Calculating acceleration:
Substitute the given values into the formula:
\[
a = \frac{{60 - 80}}{{5}}
\]
\[
a = \frac{{-20}}{{5}}
\]
\[
a = -4 \, km/hr^2
\]
Therefore, the acceleration of the bus is -4 km/hr^2. The negative sign indicates that the bus is decelerating, i.e., slowing down.
Explanation:
When a bus decreases its speed from 80 km/hr to 60 km/hr in 5 seconds, it means that the velocity of the bus is changing. The rate at which this change in velocity occurs is the acceleration. In this case, the acceleration is calculated to be -4 km/hr^2, indicating that the bus is decelerating at a rate of 4 km/hr^2.
This acceleration value helps us understand how quickly the bus is slowing down. It is essential to calculate acceleration in situations where there is a change in velocity over a period of time, as it provides valuable information about the motion of the object.
Acceleration is the rate of change of velocity. It can be calculated using the formula:
\[
a = \frac{{v_f - v_i}}{{t}}
\]
Where:
a = acceleration
v_f = final velocity
v_i = initial velocity
t = time taken
Given:
Initial velocity (v_i) = 80 km/hr
Final velocity (v_f) = 60 km/hr
Time taken (t) = 5 seconds
Calculating acceleration:
Substitute the given values into the formula:
\[
a = \frac{{60 - 80}}{{5}}
\]
\[
a = \frac{{-20}}{{5}}
\]
\[
a = -4 \, km/hr^2
\]
Therefore, the acceleration of the bus is -4 km/hr^2. The negative sign indicates that the bus is decelerating, i.e., slowing down.
Explanation:
When a bus decreases its speed from 80 km/hr to 60 km/hr in 5 seconds, it means that the velocity of the bus is changing. The rate at which this change in velocity occurs is the acceleration. In this case, the acceleration is calculated to be -4 km/hr^2, indicating that the bus is decelerating at a rate of 4 km/hr^2.
This acceleration value helps us understand how quickly the bus is slowing down. It is essential to calculate acceleration in situations where there is a change in velocity over a period of time, as it provides valuable information about the motion of the object.
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A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer?
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A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer?.
A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bus decreases its speed from 80 km per hour to 60 km per hour in 5 second. find the acceleration of the bus. class 9 give me NCERT answer?.
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