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stiks02 [169]
3 years ago
5

At full power, how long would it take for the car to accelerate from 0 to 62.0 mph ? neglect friction and air resistance.

Physics
1 answer:
Luba_88 [7]3 years ago
7 0
Given that At full power, the same car can accelerate from 0 to 31 mph in time 1.5 s. How long would it take for the car to accelerate from 0 to 62.0 mph. 
Energy= integral (P×dt) = Pt
therefore;
Since kinetic energy = 1/2 mv^2 = Pt
1/2m(31)² = 1.5 P
  480.5 m  = 1.5 P
        P = 320.33 m
Using the other scenario
1/2m(62)² = 320.33mt
    = 1922 m =320.33 mt
           t = 6.0 sec
 

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