Asked by Tamera
A racing car reaches a speed of 40 m/s. At this instant, it begins a uniform negative acceleration, using a parachute and a braking system, and comes to rest 5.0 s later.
(a) Determine the acceleration of the car.
(b) How far does the car travel after acceleration starts?
(a) Determine the acceleration of the car.
(b) How far does the car travel after acceleration starts?
Answers
Answered by
charlie
a) use v=u +at solve for a
b) use v^2=u^2+2as solve for s.
v is final vel; u is initial vel; t is time and a is accel. S is displacement; or distance in this case.
b) use v^2=u^2+2as solve for s.
v is final vel; u is initial vel; t is time and a is accel. S is displacement; or distance in this case.
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