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a car moves at a speed of 4 metre per second along a horizontal road to overtake a stationary truck when it is 6 metre behind the truck the truck starts moving with a constant acceleration of 1.2 metre per second square then the time taken by the car to over take the truck is |
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Answer» ong>Answer: ANSWER (a)After t sec the TRUCK moved s=ut+21at2 Initial velocityu=0 60=21×2.20×t2 t2=54.54 t=7.39 sec (b) Let the distance be d meters When they MET, automobile moved 60+d=21×3.50×t2 60+d=21×3.50×7.392 60+d=95.57 d=95.57−60 d=35.57 m (c)VELOCITY of truck vT=u+at vT=2.20×7.39=16.258 m/s Velocity of automobile vA=u+at vA=3.50×7.39=25.865 m/s |
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