Question

Figure shows the speed-time graph of a car.
(i) What is the acceleration of the car in first two
hours, in the next two hours and in the last two
hours?
(ii) What is the total distance travelled by the car?
(iii) What is the average speed of the car?
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Answer 1

Answer:

in the first two hours it's speed is 30 km/hr

nxt two hours it's 40 km/hr

last two hours it's 30 km/hr

(ii) total distance travelled by car is

distance= speed/time. soo....

its 7.5 kms

(iii) average speed is 40 km/hr