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CBSE Class 9 Answered

A train starting from a railway station and moving with uniform acceleration attains a speed of 40 km/h in 10 minutes. What is its acceleration
Asked by tiyabindal99 | 09 May, 2020, 02:18: PM
answered-by-expert Expert Answer
As the train starts from rest, u = 0
v = 40 km/ h =11 m/s 
t =10 min = 10 × 60 = 600 s
By first equation of motion,
 
v = u + at 
11 = 0 +  a (600)
Thus,
a = 11/600 = 0.018 m/s2 
 
Answered by Shiwani Sawant | 09 May, 2020, 04:51: PM
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