horizontal => vx = d/t = 2.4m/1.5m = 1.6
vertical => S = S0 + Vvt + 1/2at^2
0 = 5m + Vv1.3 − 4.915(1.5)^2
0 = 1.5 Vv − 6.1m
Vv = 4.6m/s
So, |V| = sqrt[(4.6)^2 + 1.5^2]
The calculated answer was 6.85m/s
The magnitude of her initial velocity is 6.85 m/s