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Question

The speed-time graph of a car is given alongside. The car weighs 100 kg.
(i) What is the distance traveled by the car in the first two seconds?
(ii) What is the braking force applied at the end of 5 seconds to bring the car to a stop within one seconds?

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Similar Questions
Q1
The speed-time graph of a car is given alongside. The car weighs 100 kg.



(i) What is the distance travelled by car in the first two seconds?
​(ii) What is the braking force applied at the end of 5 seconds to bring the car to a stop within one second?
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Q2
Question 5
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Q3
A car is travelling with a speed of 36km/h. The driver applies brakes retards the car uniformly. The car is stopped in 5seconds. Find the retardation of the car and the distance travelled before it is stopped.
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Q4

A car travelling at a speed of 80 kmph is brought to a speed of 60 kmph within a distance of 30 m by applying brakes. On travelling further at a speed of 60 kmph, the driver of the car saw an overturned truck across and he applied the brakes again. The car stopped just close to the overturned vehicle. What was the distance (in kmph) between the overturned truck and the car when the driver first saw the overturned truck? The reaction time of the driver may be taken as 2 seconds.


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Q5
A car moving at a constant speed of 54 km/h comes to rest in 2.5 seconds. The car covers 5 m after driver applies the brakes. The total force applied to stop the car is 1000 N. Calculate the power dissipated in stopping the car.
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