Q.

A racing car has a uniform acceleration of 4 m/. What distance will it cover in 10 s after starts___m?


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a

100 

b

200 

c

300 

d

500  

answer is B.

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Detailed Solution

A racing car has a uniform acceleration of 4 m/. After 10 s from the start, it covers a distance of 200 m.
Given: = 4 m/, t = 10 s, u = 0
Formula: = ut+12at²
here, S= distance, u= initial velocity, a= acceleration and t= time
Putting all the values we get,
 = 0+½(4)(100)
 = 200 m
Therefore, the distance travelled in 10 s is 200 m.
 
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