A car traveling at a speed of 20m/s stops in 4 seconds. Calculate the acceleration of the car and also the distance travelled by the car before it comes to rest.
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This question is from class 9 chapter 8 Motion
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Answer:
a =5m/sec
Explanation:
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a =( 0 -20) /4 m/s = -5m/s
here -ve sign denotes retardation
v = d /t => 20 * 4 = d ..
•°• displacement = 80 m
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