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CBSE Class 9 Answered

a car has uniform acceleration of 8m/s². what distance will it cover in 20 s after starting from rest.?
Asked by fahmidafarooqui59 | 10 Jun, 2021, 01:20: PM
Expert Answer
a = 8 m/s2 
t = 20 s
s = ? 
u = 0 
 
s = ut + (1/2) at2 
s = 0 + (1/2) x 8 x 202 
= 4 x 400 = 1600 m 
s = 1600 m 
 
Thus, the distance that will be covered in 20s after starting from rest is 1600 m. 
Answered by Shiwani Sawant | 11 Jun, 2021, 10:08: AM
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