Last Sunday, Priyanka decided to go outside with her family for the dinner in some particular restaurant.
Then, she thought to go through her own car. So, while moving she increased the speed of the car from
36 km/h to 54 km/h. All of sudden, a rickshaw came in front of her car but due to applying of brakes at the
right time, both of them got safe from meeting with an accident.
(a) calculate the increased in the speed of the car in the terms of km/h
(b) mention a positive action performed by priyanka here
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Answer:
1.Initial speed = 36 km/h = 5/18 × 36 = 10m/s
Final speed = 54 km/h = 5/18 × 54 = 15 m/s
∴ Increase in speed = Final speed – Initial speed = (15-10) m/s = 5 m/s
2.Priyanka applied the brakes at a right time while driving the car and prevented her family and the person on rickshaw from meeting with an accident.
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