The 29-1b rectangular plate is at rest on a smooth horizontal floor. It is given the horizontal impulses as shown in (Figure 1). Assume I = 20 lb-s. Figure 0.5 ft 5 lb.s 60% 2 ft -0.5 ft-- I ft 1 of 1 X
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- An estimated force vs. time curve for a baseball struck by a bat is shown in the figure below. Fmax 18000 N F (N) 20 000 15 000 10 000 5 000 0 t (ms) 0 1 2 (a) From this curve, determine the impulse delivered to the ball. L N - s (b) From this curve, determine the average force exerted on the ball. KNAn archer shoots arrows at a target. Some arrows stick in the target while others bounce off. The collision time is constant. Which arrows experience the greatest impulse, why? Which arrows experience the greatest force, why?A 0.350 kg lump of clay is dropped from a height of 1.15 monto the floor. It sticks to the floor and does not bounce. What is the magnitude of the impulse ? imparted to the clay by the floor during the impact? Assume that the acceleration due to gravity is ?=9.81 m/s2. The force exerted by the floor on the clay is plotted as a function of time in the figure. What must have been the maximum force ?max exerted by the floor on the clay?
- A 0.20-kg stone you throw rises 42.4 m in the air. The magnitude of the impulse the stone received from your hand while being thrown is Question 8 options: 14 Ns. 29 Ns. 5.8 Ns. 3.4 Ns. 6.5 Ns.24.A 2.4 kg ball drops vertically onto a floor, hitting with a speed of 25 m/s. It rebounds with an initial speed of 10 m/s. (a) What impulse acts on the ball during the contact?(b) If the ball is in contact with the floor for 0.020 s, what is the magnitude of the average force on the floor from the ball? a. 42 kg m/s, 2100N b. 84 kg m/s, 4200N c. 84 kg m/s, 2100N d.42 kg m/s, 4200NA fan blows a cart of mass m a distance d. The same fan blows a heavier cart of mass 2m through the same distance d. Which cart experiences the larger impulse? Options: A) The lighter cart experiences the larger impulse. B) Both carts experience the same impulse. C) The heavier cart experiences the larger impulse. D) The answer cannot be determined.
- 3. Initially, block A has a speed of 3 m/s as shown in the figure below. Use the principle of linear impulse and momentum to determine the speed of block B at t=6 s. The coefficient of kinetic friction between block A and the surface is Hk = 0.15 The pulleys are weightless and frictionless. 10 kg 30° V4.1 = 3 m/s B 20 kgA 0.05-kg toy car is initially moving at 1.4 m/s. Since the battery is losing power, the toy car has slowed down to 0.7 m/s. Calculate the impulse of the toy car. Input the numerical value only; do not include the units.A 1-oz bullet is traveling with a velocity of 1400 ft/s when it impacts and becomes embedded in a 5-lb wooden block. The block can move vertically without friction. Determine (a) the velocity of the bullet and block immediately after the impact, (b) the horizontal and vertical components of the impulse exerted by the block on the bullet.
- A 0.500-kg ball is dropped from rest at a point 1.10 m above the floor. The ball rebounds straight upward to a height of 0.480 m. Taking the negative direction to be downward, what is the impulse of the net force applied to the ball during the collision with the floor?The 29-1b rectangular plate is at rest on a smooth horizontal floor. It is given the horizontal impulses as shown in (Figure 1). Assume I = 20 lb. s. Figure 0.5 ft 5 lb.s 60% 2 ft -0.5 ft-- Part A Determine its angular velocity. Express your answer in radians per second to three significant figures. IVE ΑΣΦΑ ↓↑ vec w = 37.747 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Submit ***** Determine the magnitude of the velocity of the mass center. Express your answer in feet per second to three significant figures. VG = 22.2 ft/s Previous Answers ? rad/sAn 0.8kg ball, initially at rest, is launched from a kicker's foot 30° above the horizontal with a velocity of 5.0m/s. The magnitude of the impulse exerted on the foot by the ball is most nearly A. 2.75N•s B. 2N•s C. 1N•s D. 2.5N•s E. 3.46N•s