Question

a cyclist riding at a speed of 5m/sec braked with uniform deceleration and stopped in 3m. the acceleration is?​

Answer 1

here speed is 5m/sec,s=3m

time =3/5s

acceleration=velocity/time

a=5/(3/5)=25/3

a=8.3m/s²

Answer 2

Answer:

Explanation: AS WE KNOW : Vfinal^2=Vini^2 +2aS                                                           SO ,ACCORDING TO GIVEN DATA :                                                                                                0=5^2 +2a(3)                                                                                                                                          = -25/6=-4.16m/sec^2