study the speed-time graph of a body given below and answer the following:
Y
A
140
B
30
30
Spee

study the speed-time graph of a body given below and answer the following:
Y
A
140
B
30
30
Speed (m/s)
20
10
0
с
50
10 20 30
Time (s) →
40
X
i
What is the speed of the body at 40th second ?
What is the maximum speed attained by the body?
iii) What is the acceleration of the body in first 10 seconds ?
(v) What is the distance travelled by the body in last 20 seconds ?
(iv) What is retardation at 40th second ?
what is the average speed of the body?​

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