Please provide workout steps. Gerri leaves the long jump takeoff board with a

ID: 2116524 • Letter: #

Question

*Please provide workout steps.*

Gerri leaves the long jump takeoff board with a vertical velocity of 2.8 m/s and a horizontal velocity of 7.7 m/s.

a. What is Gerri%u2019s resultant velocity at takeoff?

b. What is Gerri%u2019s takeoff angle%u2014the angle of her resultant takeoff velocity with horizontal?

c. What is Gerri%u2019s horizontal velocity just before she lands?

d. If Gerri is in the air for 0.71 s, what is her horizontal displacement during this time in the air?

e. What is Gerri%u2019s vertical velocity at the end of her 0.71 s flight?

f. If Gerri%u2019s center of gravity was 1.0 m high at the instant of takeoff, how high will it be at the peak of her flight?

g. How high is Gerri%u2019s center of gravity at the end of her flight, when she first hits the pit?

Initial energy = 0.5 * m*v^2 + m*g*h = m* [ 0.5 * 2.8^2 + 9.8 * 1 ] = 13.72 m let it goes upto a height h' .. then m*9.8 * h = 13.72 * m so h = 1.4

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