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Grade: 11

                        

A man is 25m behind a bus, when the bus stars accelerating at 2ms -2 and the man starts movin with a constant velocity of 10m/s. Time taken by him to board the bus is : (A) 2s (B) 3s (C) 4s (D) 5s

2 years ago

Answers : (1)

Mohd huzeifa
18 Points
							
Acceleration of man is 0 and acc.  Of bus is 2than relative acc is = 0-2 =-2.     Than 
S = ut -1/2at2
25 =0(t)  -1/2(-2)t2 
t =5 sec. 
2 years ago
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