Answers to both questions. The options are below.

During the concentric phase of a countermovement During the concentric phase of a countermovement jump, a 60kg individual exerts an average vertical jump, a 60kg individual exerts an average vertical ground reaction force of 1150N. The concentric ground reaction force of 1150N. The concentric phase lasts for 0.4 seconds. What is the take-off phase lasts for 0.4 seconds. How long does the flight velocity for this person? phase of the jump last? . 3.99 m/s 0.88 s O 4.86 O 0.54 s 4.35 m/s 0.76 s 5.33 m/s 1.87 s 2.34 m/s O 0.61 s O 3.74 m/s 1.22s O 0.95 s 1.87 m/s . 0.38 s 2.99 m/s