Question

A kangaroo can jump 5-m vertically. What must be the initial velocity of the kangaroo?​

Answer 1

Step-by-step explanation:

a = 9.8 m/s²

s = 2.5 m

v = 0 m/s

v² = u² + 2as

=> (0)² = u² + 2 * (-9.8) * 2.5

=> 0=u²-5 * 9.8

=> 0=u²-49

=>u² = 0 +49

=>u² = 49

=> u = 7 m/s

So,

The initial velocity of the kangaroo must be 7 m/s.