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When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation?
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When a car driver travelling at the speed of 10 M per second applies b...
The acceleration and distance travelled during this time is given below;
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When a car driver travelling at the speed of 10 M per second applies b...
Calculating Retardation
To calculate the retardation of a car, we need to use the following formula:
Retardation (a) = Change in Velocity (Δv) / Time (t)
In this case, the car is traveling at a speed of 10 m/s and comes to rest in 20 seconds. Let's break down the calculation step by step.
Step 1: Change in Velocity (Δv)
The change in velocity is the difference between the initial velocity (u) and the final velocity (v). Here, the car comes to rest, so the final velocity is 0 m/s.
Δv = v - u
Δv = 0 m/s - 10 m/s
Δv = -10 m/s
The negative sign indicates that the car is decelerating or slowing down.
Step 2: Time (t)
The time taken for the car to come to rest is given as 20 seconds.
t = 20 s
Step 3: Calculate Retardation (a)
Now, we can substitute the values we have into the formula for retardation.
a = Δv / t
a = -10 m/s / 20 s
a = -0.5 m/s²
Therefore, the retardation of the car is -0.5 m/s². The negative sign indicates that the car is decelerating or slowing down.
Conclusion
The car driver applied the brakes, causing the car to decelerate from a speed of 10 m/s to rest in 20 seconds. The retardation of the car was calculated to be -0.5 m/s². This indicates that the car was slowing down at a rate of 0.5 m/s².
To calculate the retardation of a car, we need to use the following formula:
Retardation (a) = Change in Velocity (Δv) / Time (t)
In this case, the car is traveling at a speed of 10 m/s and comes to rest in 20 seconds. Let's break down the calculation step by step.
Step 1: Change in Velocity (Δv)
The change in velocity is the difference between the initial velocity (u) and the final velocity (v). Here, the car comes to rest, so the final velocity is 0 m/s.
Δv = v - u
Δv = 0 m/s - 10 m/s
Δv = -10 m/s
The negative sign indicates that the car is decelerating or slowing down.
Step 2: Time (t)
The time taken for the car to come to rest is given as 20 seconds.
t = 20 s
Step 3: Calculate Retardation (a)
Now, we can substitute the values we have into the formula for retardation.
a = Δv / t
a = -10 m/s / 20 s
a = -0.5 m/s²
Therefore, the retardation of the car is -0.5 m/s². The negative sign indicates that the car is decelerating or slowing down.
Conclusion
The car driver applied the brakes, causing the car to decelerate from a speed of 10 m/s to rest in 20 seconds. The retardation of the car was calculated to be -0.5 m/s². This indicates that the car was slowing down at a rate of 0.5 m/s².
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When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation?
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When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation? 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 When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation?.
When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation? 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 When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When a car driver travelling at the speed of 10 M per second applies brakes and brings the car to rest in 20 seconds then find retardation?.
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