1.

A racing car initially at rest, accelerates at a uniform rate of 5.5 m/s² for 10 s. Calculate (i) the distance covered by the racing car from start, and (ii) the final velocity in km/h.​

Answer»

275 m will be the distance covered by the car

198 Km/h  will be the FINAL velocity

EXPLANATION:

S= Ut + 1/2 a t ²

as INITIALLY the car was at rest U = 0

S = 1/2 ** 5.5 * 10 * 10

   = 550/2

   = 275 m .  

(ii) final velocity  =

V= u + at

u = 0

V=  5.5 * 10

  = 55 m/s

  = or  198 Km/h



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