7. A bike accelerates uniformly from rest to a speed of 7.10 m/s over a distance of 35.4 m. Determine the acceleration of the bike?

1 Answer
1s2s2p
Feb 20, 2018

#a~~0.71ms^-2#

Explanation:

The kinematic equation of motion we need is #v^2=u^2+2as#, where:

  • #v# = final velocity (#ms^-1#)
  • #u# = initial velocity (#ms^-1#)
  • #a# = acceleration (#ms^-2#)
  • #s# = distance traveled (#m#)

#a=(v^2-u^2)/(2s)=(7.1^2-0^2)/(2*35.4)=50.41/70.8=0.71200565~~0.71ms^-2#

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