New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 8 Line Graphs Self Practice 15C Solution
(1)
(i) Ans -> d
Because we see from the graph that the X axis plot time & Y axis distance. We know that, Speed = P/T
So, we see in the graph, at different time the car was travelling same distance. So, the speed of the car is contract & the stopped.
(ii) Ans -> C
Because, speed = dis/time We see in the picture(c) that when the time is gradually increasing, the car travelling more distance with respect to time.
(iii) Ans -> b
Because what the car is going in certain speed then it take some distance but when increase the speed it takes more distance that we see in the Pie ‘b’ _____ the time of Y axis (Dis) increase when the speed increase
∴ Dis = velocity x Time
(iv) Ans -> (d)
Because X axis plot time Y axis plot distance. We know speed = P/T
In this picture at different time the car was travelling same distance.
(2)
(a) 1 sq represent horizontally – 100m
1 sq represent vertically – 10 m
(b) 10 min
(c) Speed = 1000/10 = 100 m/min
(d) (35 min + 45 min)
= 80 min
(e) whole flight take 130 min
(3)
(a)
(i) 90 m
(ii) (6 + 2 + 1)
= 9 am
(iii) (6 am + 2h + 1 h rest + 2h)
= 11 am
(4)
(a) 5.30 am
(c) Forward Journey
(d) He did not more = (2hr 30 min + 3h)
= 5 h 30min
(e) 1 (pm)
(6)
(a) 40 km
(b)
(i) 30 km
(ii) 46 km (approximately)
(c) 10:30 am
(e)
(i) Sanjay
(ii) Sanjay
(f) 50 km
(ii) 30 km
Best
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