<h2>
Speed required is 12.05 m/s</h2>
Explanation:
Let the velocity of puma be a.
Consider the vertical motion of puma
We have equation of motion v² = u² + 2as
Initial velocity, u = asin45
Acceleration, a = -9.81 m/s²
Final velocity, v = 0 m/s
Displacement, s = 3.7 m
Substituting
v² = u² + 2as
0² = (asin45)² + 2 x -9.81 x 3.7
a² = 145.19
a = 12.05 m/s
Speed required is 12.05 m/s
