Question

A racing car has uniform acceleration of 4m/s2 .How much distance will it cover in 10 seconds after start?
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Answer 1

S=ut +1/2at2

=0*t+1/2(4*100)

=0+200

=200m

Answer 2

Answer:

Step-by-step explanation:

Given :-

Acceleration by the racing car, a = 4 m/s2  

Initial velocity of a racing car, u = 0 m/s  

Time taken by a car, t = 10 seconds

To Find :-  

Distance covered (s) =?  

Formula to be used :-

2nd equation of motion i.e s = ut + 1 /2 at²  

Solution :-

Putting all the values, we get

⇒ s = ut + 1 /2 at²  

⇒ s = 0 × 10 + 1/ 2 × 4 × (10) 2 m  

⇒ s = 2 × 100 m  

⇒ s = 200 m  

Hence, 200 m distance will it cover in 10 seconds after start.