Morgan is attempting to high jump over crossbar set at 2.29m. At instant takeoff velocity (vertical) is 4.4m/s and center of gravity is 1.31m high. What peak height does Morgan's center gravity achieve?
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Morgan is attempting to high jump over crossbar set at 2.29m. At instant takeoff velocity (vertical)...
Brian is attempting to high jump over a crossbar at 2.44m (8ft). At the instant of takeoff (when he is no longer in contact with the ground) his vertical velocity is 4.0m/s and his center of gravity is 1.25 m high A. What is Brian’s acceleration at the instant of takeoff? B. How much time elapses after takeoff until it reaches his peak height? C. What peak height does Brian’s center of gravity achieve?
Gerri leaves the long jump takeoff board with a vertical velocity of 2.8m/s upward and a horizontal velocity of 7.7m/s. Gerri is in the air for 0.71 seconds before she hits the ground. Gerri’s center of gravity was 1m high (relative to the ground) at the instant of takeoff. Assume that the effect of air resistance is negligible and that the upward direction is positive. How high is Gerri's center of gravity at the end of her flight, when she...
GRF: Ground Reaction Forces Jump Impulse: Takeoff Velocity: Jump-height: An athlete did a vertical jump. The measured GRF is shown in the figure below. How high can she jump? 1300 1250 1200 1150 1100 1050 1000 950 900 850 GRF [N] 0 + 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85 0.9 0.95 1 1.05 1.1 1.15 1.2 1.25 1.3 1.35 1.4 1.45 1.5 1.55 1.6 1.65 1.7 1.75 1.8 1.85 1.9 1.95 2 2.05 2.1 2.15 2.2 time [s]
I need number 11 What is the ball's horizontal displacement 2 s after it leaves the kicker's foot? What is the ball's vertical displacement 2 s after it leaves the kicker's foot? d. 11. 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's resultant velocity at takeoff? b. What is Gerri's takeoff angle-the angle of her resultant takeoff velocity with horizontal? c. What is...
15) During an equestrian show jumping competition, a rider and her horse need to jump over a fence that is 1.5 m tall. They take off from the ground with a horizontal velocity of 6.2 m/s and a vertical velocity of 2.5 m/s, giving them a projection speed of 6.7 m/s and a projection angle of 22°. The center of mass of the horse and rider is 1.94 m above the ground at the instant of takeoff, and for a...
QUESTION 1: A kangaroo can jump over an object 2.46 m high. (a) Calculate its vertical speed (in m/s) when it leaves the ground. m/s (b) How long (in s) is it in the air? QUESTION 2: A football quarterback runs 15.0 m straight down the playing field in 3.00 s. He is then hit and pushed 3.00 m straight backward in 1.74 s. He breaks the tackle and runs straight forward another 29.0 m in 5.20 s. (a) Calculate...
questions with answers the cylinder's vertical velocity is zero? 10. A gymnast falls from the high bar and lands on a 10 cm thick gymnastics mat. The gymnast strikes the back of his head against the mat during his landing. His head is moving at 7 m/s when it first strikes the mat. The mass of his head is 5 kg. The impact ends when the gymnast's head comes to a stop after deflecting the mat 6.5 cm. How much...
HW02#2 Four Projectiles Four projectiles are all shot over level ground. The projectiles are launched at four different angles, 20, 30, 45° and 60° above horizontal. There are four steps for this problem: A. Intuition, B. Computation, C. Validation, and D. Discussion 5° Intuition: In the table, use your intuition (not computations!) to evaluate the greatest "G" and least "L" scenarios for the set of 4 angles below for the following criteria (1) same horizontal range, (2) same maximum height,...
Please show work Your group should discuss and solve all problems below. Each student in the group should prepare a neat solution to ONE of the 4 problems (different problems for each group member) Consider the two vectors A and B having directions as shown in the fi 0Al A 61 units) and the magnitude of B is 55 un55 units) 1. gure. The magnitude of A is 61 units ㄩ 52" B68 (a) Write an expression for each vector...
75 To stop a car, first you require a certain reaction time to be 2The psition of a particle moving along the x sxis depends on gin braking: then the car slows at a constant rate. Suppose that the the time according to the equationxbP, where a is in me total distance moved by your car during these two phases is 56.7 m lers and rin secondh What are the units of (a) constant e and (b) con- when its...