4) On turning a corner, a motorist rushing at 20 m/s, finds a child on the road 50 m ahead. He instantly stops the engine and applies brakes, so as to stop the car within 10 m of the child. Calculate (i) retardation, and (ii) time required to stop the car.
4) On turning a corner, a motorist rushing at 20 m/s, finds a child on the road 50 m ahead. He instantly stops the engine and applies brakes, so as to stop the car within 10 m of the child. Calculate (i) retardation, and (ii) time required to stop the car.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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4) On turning a corner, a motorist rushing at 20 m/s, finds a child on the road 50 m ahead. He instantly stops the engine and applies brakes, so as to stop the car within 10 m of the child. Calculate (i) retardation, and (ii) time required to stop the car.
5) A motor car takes 8 seconds to cover 30 meters and 10 seconds to cover 40 meters. Calculate the uniform acceleration of the car and its velocity at the end of 14 seconds.
Transcribed Image Text:4) On turning a corner, a motorist rushing at 20 m/s, finds a child on the road 50 m ahead.
He instantly stops the engine and applies brakes, so as to stop the car within 10 m of the
child. Calculate (i) retardation, and (ii) time required to stop the car.
5) A motor car takes 8 seconds to cover 30 meters and 10 seconds to cover 40 meters.
Calculate the uniform acceleration of the car and its velocity at the end of 14 seconds.
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