A man driving a truck at a constant speed of 20 m/s suddeny saw a parked car ahead him by 95m. He could apply brakes after some time to produce a retardation of 2.5m/s^2 .If an accidentwas just avoided find his reaction time

Question

Jobin C J · Answer

s=95-20∆t,v²=u²-2as,400=2×2.5×(95-20∆t),400/2×2.5 = 95-20∆t,80 = 95-20∆t,∴20∆t=15∆t = 3/4 =0.75 SecondsJobin C JXII

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A man driving a truck at a constant speed of 20 m/s suddeny saw a parked car ahead him by 95m. He could apply brakes after some time to produce a retardation of 2.5m/s^2 .If an accidentwas just avoided find his reaction time

A man driving a truck at a constant speed of 20 m/s suddeny saw a parked car ahead him by 95m. He could apply brakes after some time to produce a retardation of 2.5m/s^2 .If an accidentwas just avoided find his reaction time

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A man driving a truck at a constant speed of 20 m/s suddeny saw a parked car ahead him by 95m. He could apply brakes after some time to produce a retardation of 2.5m/s^2 .If an accidentwas just avoided find his reaction time

A man driving a truck at a constant speed of 20 m/s suddeny saw a parked car ahead him by 95m. He could apply brakes after some time to produce a retardation of 2.5m/s^2 .If an accidentwas just avoided find his reaction time

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