Question

7 Read the following and answer any three questions from 7 (i) to 7 (iv) Anita and Shilpa went to Mathura through Yamuna expressway. Anita started the car and accelerated, so highly that the car was running at 108km/h within 10s. Shilpa kept a track on the speedometer and stopped her from doing so and told her that over speeding on road was a straight invitation to life risk though Anita wanted the adventure of speeding but he was convinced by Shilpa. i) What was the acceleration of the car? a) 7 m/s² b) 8 m/s² c) 3 m/s² d) 5 m/s² ii) What was the total distance covered by the car in when it attained the speed 108 km/h? a) 100 m b) 120 m c) 150 m d) 170 m iii) What was the average velocity of the car? a) 20 m/s b) 10 m/s c) 15 m/s d) 25 m/s iv) The numerical ratio of average velocity to average speed of the car when it is moving along a straight line is a) 1:1 b) 3:1 c) 1:3 d) 1:2​

Answer 1

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