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1. A van has lost its brake and falls into a 25.0-
meter-deep ravine and lands at a
distance of 30.0 m from the edge of the ravine. Determine the initial horizontal
velocity of the truck.​

Sagot :

JanineTristego

Answer:

47.8 km/h

Explanation:

t = sqrt(2*h/g) = sqrt(50/9.81) = 2.2576 s

this is the time to fall, in this time the truck covers 30 meter horizontally so the horizontal velocity is

30/2.2576 = 13.288 m/s = 47.8 km/h

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