Why get B?

Why get B?
BECAUSE RACE CAR

Submitted by: Jay

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3 Responses to Why get B?

  1. matt says:

    Why spell it like breaks. Because no race car.

  2. JB says:

    It’s been a while… but given the data provided, I’m guessing there need to be a resistive force of 298N?

    • MiG says:

      Hehe, not quite. 13461 N.
      For constant acceleration a=V/t
      Then F=ma
      F = 2000 * 35/5.2 = 13461 N

      It’s good to sense check answers. You could generate a friction force 298 N by forcing a piece of 2×4 against the ground, but you probably know that there’s no way you could stop a heavy sedan going 126 km/h in 5.2 s with that.

      Anyway, what sort of idiot relates a lack of brakes to a race car? If you’re just engine braking, you’re slow.

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