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Suppose a rocket-propelled motorcycle is fired from rest horizontally across a canyon 1.20 km wide. (a) What...

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Physics

Suppose a rocket-propelled motorcycle is fired from resthorizontally across a canyon 1.20 km wide.

(a) What minimum constant acceleration in thex-direction must be provided by the engines so the cyclecrosses safely if the opposite side is 0.780 km lower than thestarting point?
m/s2

(b) At what speed does the motorcycle land if it maintains thisconstant horizontal component of acceleration? Neglect air drag,but remember that gravity is still acting in the negativey-direction.
m/s

Answer & Explanation Solved by verified expert
4.1 Ratings (623 Votes)
a For the motorcycle to land safely the displacement it undergoes in the ydirection should be equal to the difference between the heights of the starting point and landing point h We have h 078 km 780 m The acceleration in the ydirection is equal to the acceleration due to gravity as there is no external component of    See Answer
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