The air around the spinning baseball in the following figure (top view) experiences a faster speed on the left than the right side and hence a smaller pressure on the left than the right. Suppose the ball is traveling forward in the x direction at 40.0 m/s and it breaks 16.0 cm to the left in the -y direction (neglect the pull of gravity in the z direction). Assume the ball has a mass of 142 g and a radius of 3.55 cm. In addition, assume it travels at a constant speed of 40 m/s in the x direction from the pitcher's mound to home plate (60.5 ft = 18.44 m). Hint: The pressure difference equals the leftward force divided by the cross-sectional area of the ball, ². Left side Right side x = 18.44 m y

The air around the spinning baseball in the following figure (top view) experiences a faster speed on the left than the right side and hence a smaller pressure on the left than the right. Suppose the ball is traveling forward in the x direction at 40.0 m/s and it breaks 16.0 cm to the left in the -y direction (neglect the pull of gravity in the z direction). Assume the ball has a mass of 142 g and a radius of 3.55 cm. In addition, assume it travels at a constant speed of 40 m/s in the x direction from the pitcher's mound to home plate (60.5 ft = 18.44 m). Hint: The pressure difference equals the leftward force divided by the cross-sectional area of the ball, ². Left side Right side x = 18.44 m y

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Q/ The (200N) block shown in Fig . Has impending motion up the plane .Coused by e isjall dåg le the Horizontal force Lii 5 gå of ( 400N ). Determine the coefficient of static friction between the contact surfaces alial l. 400N 200N 300
The rollers attached to rod AB can slide freely along the horizontal floor and the vertical plane. At the instant shown, end A has a downward velocity of 2.5 ft/s. Determine (a) the angular velocity of the rod and (b) the velocity of end B of the rod. A В 12 in 20 in 16 in
Situation A 4- a particle rotates in accordance with the equationd= 24-6t, where & is in rad/s? ard t is in secs. when t=0,w-20 rads/s ard + =0. Find the maximum angular velocity - %3D
Example An experimental device imparts a force of magni- tude F 225 N to the front edge of the rim at A to simulate the effect of a slam dunk. Determine the 900 mm 700 mm moments of the force F about point O and about point B. Finally, locate, from the base at O, a point C on the ground where the force imparts zero moment. 300 mm 3050 mm Ans. Mb= 166.5 N.m Mo= 123.75 N.m Location C w.r.t O = 687.5 mm to the left O
I. For the frame shown (AN 15), the force F acting upward at C causes a horizontal reaction of 100 kN at C. Which of the following most nearly gives 1) The value of the force F in kN, 2) gives the reaction at A in kN, 3) the angle in degrees that the reaction at A makes with the horizontal axis (positive counterclockwise). 5 m Figure AN-15
Q35. A plate of length 600 mm and weighing 100 N is hung from the hinge at the top. It is hit by a jet of water diameter 12 mm having a velocity of 20 m/s, the jet axis being 350 mm, below the hinge. Find the angle that the plate will make with the vertical when the jet (at the same level) plays on the plate.
Unit 4 Rotation Gravity, Satellites... An Fw-10200 N vehicle is stalled one-third of the way across a bridge Compute the support force Fsup that needs to be supplied at the support of the bridge farthest from the vehicle.
A 450-N is in contact with a level plane of fk = 0.10. The block is acted upon by a horizontal force of 75N. The block reaches a velocity of 15m/s, starting from rest. If the 75-N force is then removed, how much longer will the block continue to move?
STRUCTURAL THEORY (NEED ASAP) PROBLEM 1 In the propped beam shown, determine the maximum deflection, maximum moment and maximum shear. 1000N/m 2m 2m 1m
A bead moves along a circular wire. Its speed increases at as2t - 4m/s?, Its initial (at t=0) position and speed are s(0)=0 m and v/0)=3 m/s. At t=Ssec, determine: The magnitude of the bead acceleration b. The position of the bead along the wire (give both arc length, s, and angle 6) The total distance traveled along the wire by the bead in the 0-5 sec time interval.
1m/s 2. (50p) The 1-kg ball is thrown so that it travels horizontally at 10 m/s when it strikes the 4-kg block as it travels down the smooth inclined plane at 1 m/s. If the coefficient 10 m/s B of restitution between the ball and the block is e=0.6, and the impact occurs in 0.006 s, determine the average impulsive force between the ball and block. A 20
Situation 2 - The beam is acted upon by a uniform load as shown. The product EI = 1,000,000 where the modulus of elasticity is in Pascals, and the moment of inertia of the cross section is in m^4. 100 N/m A. 220.5 B. 212.4 TTT 5. Which of the following most nearly gives the vertical reaction at the roller in Newtons? A. 46.9 B. 51.9 A. B. 3 m 0.000213 0.000124 C. D. 6. Which of the following most nearly gives the moment reaction at the fixed end, in Newton-meters? 223.0 216.3 7. Which of the following most nearly gives the slope at the roller support in radians? 2 m 45.9 48.9 C. D. C. 0.000186 D. 0.000275