According to studies by Stevenson (1985), a diver (mass = 58 kg) entering the water from a 10 m tower has a vertical velccity of 16.8 m/s downward at the instant that they first touch the water. At an instant 0.133 s later, the velocity of the diver has decreased to 5.2 m/s downward. a. What was the change in the linear momentum of the diver over the 0.133 s interval after contact with the water? b. What was the average net impulse exerted on the diver over the 0.133 s interval after contact with the water? c. What was the average net force exerted on the diver during the 0.133 s interval after contact with the water? d. Draw a free-body diagram of the diver at t-0.100 s. e. What was the average acceleration of the diver during the initial 0.133 s interval after contact with the water?
According to studies by Stevenson (1985), a diver (mass = 58 kg) entering the water from a 10 m tower has a vertical velccity of 16.8 m/s downward at the instant that they first touch the water. At an instant 0.133 s later, the velocity of the diver has decreased to 5.2 m/s downward. a. What was the change in the linear momentum of the diver over the 0.133 s interval after contact with the water? b. What was the average net impulse exerted on the diver over the 0.133 s interval after contact with the water? c. What was the average net force exerted on the diver during the 0.133 s interval after contact with the water? d. Draw a free-body diagram of the diver at t-0.100 s. e. What was the average acceleration of the diver during the initial 0.133 s interval after contact with the water?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:According to studies by Stevenson (1985), a diver (mass = 58 kg) entering the water from a 10 m tower has
a vertical velocity of 16.8 m/s downward at the instant that they first touch the water. At an instant
0.133 s later, the velocity of the diver has decreased to 5.2 m/s downward.
a. What was the change in the linear momentum of the diver over the 0.133 s interval after
contact with the water?
b. What was the average net impulse exerted on the diver over the 0.133 s interval after contact
with the water?
c. What was the average net force exerted on the diver during the 0.133 s interval after contact
with the water?
d. Draw a free-body diagram of the diver at t-0.100 s.
e. What was the average acceleration of the diver during the initial 0.133 s interval after contact
with the water?
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