Tuesday, March 6, 2012

Surfing For Reaction Distance Formula?

Mandy asks…Maths/ Science help!!?a) A car is travelling at 60km/h. If its brakes can decelerate the car at 6m/s, what is it its braking distance? Use the formula V power of 2 = U power of 2 +2ad, where V is the final speed, U is the initial speed, a the acceleration and d the distance travelled.

b) If the driver has a reaction time of 0.8 seconds, what is the reaction distance?

c) What will the stopping distance be?Nancy answers: 60 Km/hr = (60) • (1000) ⁄ (3600) = 16.67

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